How to get a girl out of my head..?

I feel you and let me tell you that it is almost impossible to get rid of your crush specially when you love them that much. So I'm gonna share with you the things I did to accept the fact that my crush and I will never be more than friends and that I have to love myself and move on. The first thing I tried was stop texting him. I know it is something you have tried already and it didnt go well in your case, but what I did to avoid blocking was saying something like "I really dont wanna get used to you anymore. You know i will always be here for you and the best of happiness and sucess is all i wish you", I asked him to talk just once a week or once a month to know about him, and he dubiously accepted. After that he felt unsured about the agreement but I had to explain that it was something needed for his good and mine. We kept talking once a week for 1 and half year, I met new ppl, I tried to focus on loving myself and he started dating someone. When he told me he was in a relationship, I didnt feel bad at all but happy instead bc I already knew that something like that was gonna happen. I started dating someone too, and that is another thing that made me distracted myself. Another thing I also did was thinking about my crush like an impossible, like that kind of crush you have on a celebrity, you can say they are cute and nice but they dont know about your existance and alos thinking in that way will make you accept you like your crush but you cant have them. This thing leads to the other thing I also did: accept i like my crush. The more you say you dont like your crush, the more you get attached to them. 
In few words, it is impossible to get rid of your crush but wishing them the best in this life, be their best friend, learn to live just knowing about then occasionally and give yourself a chance to like other ppl. We dont have only one chance to fall in love but thousand of chances. And never forget to love yourself first to love others.  

By maintaining ANY contact, even just as "friends", you are keeping the wound open and rubbing salt in it. Your better option would be to close the door completely. Move on, no further emails, friends with her, talking, etc.  Close it out, and you will heal. Good luck,

Sounds like you need to let go of being friends with her because in reality you aren’t actually friends with her, you are hoping one day her relationship fails (not a good friend) so you have a shot (which probably won’t happen). Drop her and focus on yourself , and someone may come along eventually. You can’t expect her to change her mind, and if she ever finds out you are praying on her relationship to be a bad one, she probably will never want to talk to you again. 

Maybe you should get therapy because what you explain is unhealthy.  I've had problems with a stalker for years and I wish that nut would seek help.  Just stop focusing on her as if you have a right and get on with your life.  I'm happy you prayed it shows you are putting forth the effort but you have to put action behind your prayers and make every effort to change.  Put a rubber band on your arm and pop it when you start thinking about her.  Good Luck and God Bless you.

Sorry about your pain - it is an agonizing situation. I don't mean to be rude, but this sounds like it could be on the verge of an obsession. It seems like you need some professional counseling to help you through talk through this and help you get over her. It's often available for little or no fee through health insurance. Almost everyone needs counseling at some point in their lives.

Unfortunately it takes mutual true love for a relationship to last a lifetime. 

Could you possibly be confusing having the feeling of being "in love" and true love?

Here's some information about love from the books True Love Lasts, Straight Talk About Teen Dating, and Straight Talk About Dating:

“Unfortunately, lots of people don’t know what true love is and that’s a big reason why a large number of marriage relationships are unhappy. Many people think that true love is just a feeling. You know, the wonderful head spinning feeling of being “in love.”

If true love is just a feeling, feelings come and go. But true love doesn't come and go. True love is patient and kind. It isn’t jealous, rude, selfish, controlling, or easily angered. It forgives. It’s supportive, loyal, hopeful, and trusting. 

Unlike the feeling of being “in love” which is relatively easy to get especially during dating, true love usually develops slowly over a significant period of time (often years). In order to develop true love for someone you really have to know them well – which means that you have had a chance to observe their behavior in all types of situations (pay special attention to how they react when things go wrong or they don’t get their way). True love is so much more than just the feeling of being “in love” - it’s supposed to be a mutual lifelong commitment. When you say that you love your significant other, you’re saying that you’re committed to loving them for the rest of your life - for richer, for poorer, in sickness and in health, from this day forward, until death do you part. True love lasts - it almost never fails.

Think of it this way, if a person has true love for another person, it’s like the sun - it’s always there no matter what (remember that even at night, the sun is still there, it’s just shining on the other side of the earth - and when it’s cloudy outside the sun is also still there, it’s just behind the clouds). 

On the other hand, the feeling of being “in love” is like sunshine - even though we’d like it to be sunny every day, the truth is that the amount of sunshine changes regularly. Some days it’s nice and sunny and the feeling of being “in love” is strong, on others it’s partly cloudy and the feeling of being “in love” is there but it’s not very strong, and on other days it’s cloudy and the feeling of being “in love” is barely there at all. I’m hoping that this explanation is helping you to see that it’s possible for a person to have true love for another person and not have a strong intense feeling of being “in love” with that person at a particular moment. (If you talk with married couples, I think they’ll tell you that the strength of their feelings of being “in love” changes regularly.) 

So when you hear someone say, “I don't love him or her anymore” - take it for what it usually is. It’s usually someone saying that they’ve lost the feeling of being “in love”, that they don’t know how or they’re not willing to make the effort required to get the feeling back, and that they probably never had true love for their significant other to begin with because true love almost never fails. 

Many times I’ve heard young women say, “my boyfriend loves me.” Unfortunately, most of these women have been fooled. How could their boyfriend possibly have true love for them if their boyfriend doesn’t even know what true love is? Sadly many people marry when one or both people don't have true love for the other - and the result is usually divorce because it's hard to keep a marriage together when it's based only on the feeling of being "in love." 

My first suggestion is that you put in the effort necessary to become a strong person (if you’re not already). A strong person has good character (honesty, integrity, trustworthiness), a positive attitude (cheerful, caring, friendly, forgiving, helpful, and respectful), fulfills their responsibilities (for handling pains in a positive way, for always trying to make a good choice, for taking care of themselves, for serving others), puts forth their best effort, and displays self-control (of their body, anger, tongue and money). 

It’s going to be tough, but my second suggestion is that you eventually look for this type of girl (otherwise you are setting yourself up for a broken heart). Unfortunately this type of woman is difficult to find – but save yourself the heartache and don’t settle for less.

(Please remember that you eventually want a 50 or 60 year marriage - not a 5 or 10 year marriage.)

Hope this helps!

        

Wow

So you are in the dreaded Friendzone.  

Chances are you will never get out of the Friendzone.  

First of all she probably will never be a good friend.  So do not think of her as a friend.  As Tom Cruise said in a movie - Do you think she will be there for you when you really need a friend?

You are like Ducky Dale from the movie Pretty In Pink and I was that person once, about a girl.  

When I watch that movie I always ask, why does he want to be friends with Andi (the girl of his dreams).  

My advice:

Do not be afraid of looking at her flaws, and I am sure she has some, even if you and her share some of those flaws.

Do not be afraid of insulting her on her flaws, or insulting her taste in men, especially since she is not attracted to you.  The quicker you assure her you are not her friend because she is not attracted to you  the more animosity you will get from her which will probably help you get past her, in the years to come.  

But it may take years to get over her.   Been there.  

Once you do, you will be free of that problem, and able to live your life the way you want.    

In the meantime, well, some people join the Army to help with this problem.  Being placed in a life and death situation makes a person think about other things.  

Drill a big hole on each side of your head and use a garden hose to flush her out.

lock her in your basement

Don't waste your time with that broad, ho's will be ho's, never make them house wives!

Let's look at the facts.

1)  >> ...this girl and I are just friends...
 So, you are in the friend zone.  Not a good place to be.

2)  >>  ...she’s in a complicated relationship rn and she seems kinda happy...
 She's attached and happy.  You have no chance.

3)  >>  ...I know for a fact that she will never like me more then a friend...I’ve accepted that...
BS.  You haven't accepted that.  Not even close.  Friend zone!!!

4)  >>  ...I know I can’t have her and have accepted that...
Friend zone!!!  Accept it. 

I've been there.  It took her 20 years from the time I met her to finally get a divorce from a bad marriage, and to add salt to the wound, she didn't want me.  How's that for life?

Date other women.  Forget about this one.  She doesn't want you.  You would know it if she did.  You have as much chance with her as I have with Jennifer Aniston.  Forgetaboutit.

Get a real girlfriend.  It may take time, but things like this do take time.  Welcome to life.  Get a girlfriend.  Get a friend with benefits.  Get deeper into your hobbies.  Go to Meetup.com and get with a group that interests you.  There will be girls enjoying the same things you enjoy. 

Pretend this one does not exist.  Because for you, she doesn't.

.

I would try distance. Idk how often you see them in person or online or whatever, but see them less.
From there, I would do something alike to what Jael said... If you know they aren't going to reciprocate your feelings, then you got to find a way to express some pent-up feelings some way. You do you until you find someone who you can impart your feelings on [consensually].
Good luck, my dude.

This is psychology. You cannot get her out of your mind because you cannot have her. Its very simple.
If you cant get someone out of your head and its mutual, thats a love to be explored. But here it seems you are the one who is thinking.
If you could be attracted to someone and have them, then this wont happen. 
If you think and say to yourself "dont think about xyz". Thats the only thing you would think about. The more you force the more youre going to struggle.
Just let it be, dont force. Gradually she will be out of your mind when you stop forcing yourself to forget her. Dont tell your brain 'donts', 
I hope you got your perfect solution before Apr 20:)
Hope you'd answer mine too.

Take many photos of her.
Print the photos.
Burn them one at a time while reciting,
"She doesn't like me like I like her. She is not dependent on me like I'm dependent on her.
It's over".

Go for a cross country road trip, go for a hike, or a camping trip with your friends. 

Try your best in a new pursuant if you can.  Just about immerse yourself in the new one. If not, try and take up your time in work and hobbies