I think I'm depressed but I could never tell my mom since she never listens to me. I was caught cutting myself a year or two ago and my dad was so mad. I could never discuss anything like that with him. I'm always grounded so my life is sitting in my room on the computer and I think that just makes it worse. I have only told my girlfriend I'm feeling this way and she said I was fine just upset at the moment so I haven't said anything about it after that. My grades are bad and just getting worse. And that's just making me in more fights with my family and having to stay in even more.

It sounds to me like you should see your doctor. At least try to talk to a responsible adult a teacher perhaps. Try.