If you becomes a satanist will you get what you want in life?

No. You will get what Satan wants you to have.... Which is eternal death.

https://www.jw.org/en/publications/magazines/g201406/death/#?insight[search_id]=05dc6dc2-42dd-493b-8608-8dd4373e5985&insight[search_result_index]=7

yes, me the evil one, will make sure you get

ALL THE DEADLY SINS AND WICKED URGES
IF YOU WANT THEM.

No, when you become a Satanist you don't get free stuff and a million dollars. Satan shows you the way to better your life through empowerment and knowledge, and you can only achieve this through him. You can only better yourself.

Joyofsatan.org

No, but if you can fool yourself into believing satanism is meaningful, you can probably fool yourself about anything so you might believe satanism got you what you wanted in life.

No and you will go to Hell after your body dies.

Look at all the terrible intolerance, hatred, bigotry, homophobia and persecution posted by Christians towards others! Ever seen a Satanist post such horrendous stuff? Of course not! Seems Christians have the good guy and bad guy the wrong way around!

It may seem so to you at first but that would only be because you have been fooled into thinking you are getting something good like Eve was fooled into thinking that she was getting a better deal for her and Adam when it was really their demise for them an all their offspring right down to today and your asking this question shows your being deceived also, the thing is satin and his demons are not out to help humans, they are out to harm humanity and so use all kinds of deception to do that

LOL. It depends what you want in life I suppose. And it depends what kind of satanist you are referring to. If you are talking about worshipers of the imaginary supernatural being "Lucifer", then I would say most people probably won't unless they desire to live in a dark fairy tale. If you are talking about people who are atheists who, as a joke, call themselves satanists for embracing themselves and their human condition, more people may prosper by becoming that kind of satanist. Although, they believe following any desire you have is what you should do as long as it doesn't kill anyone. I don't personally believe that, but if you are dedicated to non-violence, I think being that kind of satanist could benefit someones life.

Peace and love.