Never eating at school - Just can't get my head around to it

Feeling guiltly for something I didn't do - Like this boy said something really harsh to me and I questioned him back asking why does he think that.... Then I started to cry with my head on the table as the results of it he said sorry lost his only true friends and he lost ME who I treated him as a person (not a friend) Sometimes looking back people can change. He went from not knowing me, then thinking I'm ok, then hating me and now don't know each other anymore! Though I think I'm going off topic. There answer to your question is theres not a lot you can do, just helping others seems to make a world a better place. But helping yourself is something that sometimes you need others to help you too.