I am feeling down , and today is my third day of school . Please help me?

Hey, I know how you feel. I'm 15 and every time I go to school and see my friends there having a laugh and asking me whats my problem, i dont really know anymore, then i recently found out i have major depression. and then thats when it hit me. Friends, why do we need them who are they to us? You're just lonely. Try getting into the fun. You're left out trying being a part of something. Stand for yourself. In my case i'd say **** it. I don't need this crap. I don't know anything anymore, we don't know anything anymore?