I feel like nobody likes me
That's an awful feeling. What makes you think that?
Nobody asks me to hang out, nobody calls me by name in class. There's nothing more to do but conclude that nobody likes me.
Feeling that way about yourself probably shows in your words and actions. That likely means people don't want to hang around someone who's constantly in the dumps.
I don't know what else to do, I'll stop being like this soon.
I'm so glad you are making the effort to change. I hope it works out for you soon.