Lonely and confused for no reason?

Yup! I did had those 'lonely times' before. I suggest you get some hobbies, like planting, painting, photography, etc. Being alone does not mean you'll be lonely. Also, being with a company doesn't mean you'll be happy. Start happiness within yourself, deep inside you first.

I experience this all the time because I'm always lonely. No one likes me. I'm stupid and selfish and immature. Everyone else is very mature, creative and outgoing. Hence, I get kicked by everyone everywhere I go. So your life is not as bad as mine. Be happy.

It's just normal.
Recently,I had a trouble in school too ,I cannot be the prefect leader for several reasons and my classmates don't like me too,I'm frustrated
Last month,I 've been to mainland China,where I've met lots of people and had a great time there.But then,when I came back,I feel really.....lonely,it's just like no one understand you ( I won't tell my parents) Sometimes,I can't concentrate on my studying,it's a horrible feeling
But trust me,everything will be okay after....1 or 2 months,I 'm now recovering!