I'm sad sad sad sad sad sad sad sad?

my girlfriend broke up w/ me, wont talk to me, got bad grades, parents wont talk to me. sisters dont like me (duh). and my life feels pretty sucky nowadays. any ideas to make me feel happier. the girl is bumming me out the most. she was so pretty! and nice....and (seemingly) perfect. im confused with my life and pretty much depressed. how does i stop it!?