What's wrong with me?

Home schooling, hmm. Dude, I'm no expert but you obviously have no self-respect. You're afraid that everyone is better than you and so on... Sitting at home won't help you grow out of that feeling. You gotta get out and do stuff you like, go to some party with your brother, drink a couple of beers or something and eventually you'll meet people and become a normal talkative guy.