Story about my crush I guess

I wanted to talk about my experience with my crush, at the beginning I didn't really like her but I started talking to her and I was becoming more and more attracted towards her. We started to get along really well and she told me I was very attractive so I was even more attracted to her. We started to hang out and every time we began to touch each other like hands and stuff. I remember we were doing this project at school and we both touched hands for the first time lol I was shaking, but neither of us wanted to remove our hands we just wanted to touch each other. Then we started to go out and I really liked her, we kissed on the first date and everything was going great, this happened when I changed of schools I was new and no one knew me, and at my previous school I was never noticed by girls, but suddenly out of the blue, she stopped answering my texts and stopped talking to me everytime I wanted to talk to her she didn't seem interested anymore, I can't stop thinking about what happened, I still like her and damn it hurts. I never knew what I did wrong and I am just devastated I was really in love with her. I don't get it why I can never do anything right in my fucking life, I just hate my life and I hope I die I just don't get it and it is painful to never know what I really did wrong.