When I was in high-school I had social anxiety and I started to skip/fallout of school. My mother went crazy, because in our family education is EXTREMLY important, and made me go to a psychiatric hospital. I stayed there for a month and started going back to school without any problems after that.
It brings me to my point; I learned allot when I was in there. People who were acting/talking like you will eventually go suicidal. I do not want that to happen. Find a good pass time and get attached to it and get someone that you can talk to. For me it is paintball and listening to the Beastie Boys.
Alcohol or drugs aren't a sollution.
Funny story about my little hospital visit. I was sitting on the couch watching TV and in the hospital there isn't ANY physicle contacts alloud and they are VERY strict on that. So anyways, this new girl who is a little handicaped sits right beside me. I'm a little unconfortable but I'm cool with it since she IS handicapped and other people have done it without any problem. Next she puts her hand on my thigh and looks at my eyes and says "Nick, I love you allot." I don't say anything and walk (almost run) to my room and I don't get out untill the next day. I was horrified. She was fat and looked like a geneticly modified hamster.