Why am I a failure at life and everything I do?

My name is John and I am a junior in highschool. My grades went from a 3.2 to a 1.2 in from last year. I play guitar but I'm not good at it because I developed Carpal Tunnel which for some reason took a great toll on my hands. I don't really talk to any of my friends anymore. I stopped working out or keeping in shape. I listen to nothing but death metal and black metal. I look like I am ill because I'm always tired and I lost a lot of weight. My mom and dad don't really like me that much anymore. I hate my job I hate jocks i hate the icp I hate over achievers and extremely religious people I also hate the rich people. I don't have any talents and I'm still trying to figure what i can do with my life with what little talent I have.