What do I do when I feel like no one actually likes me?

Okay, so here's what you have to do. If YOU KNOW the people whom you assume don't like you then just simply don't talk to them (unless you want to). I would say try to talk to those people to get a jest of their true feelings. If they DO actually like you then I'd say talk to them and forget about what you were thinking at the time. In all, it doesn't matter if someone likes you or not, you have to like you.