No offense dude but you don't know tough. I'm 22, 5'6", overweight, acne, losing my hair, no friends, no girlfriend, no job, no money. I have absolutely nothing to live for except the fact that I have good parents who want the best for me. Without that I probably would've killed myself. That and the hope that one day things could be better. Atleast your in school, atleast you have a job and goals. Atleast you can talk to girls and probably could get a girl if you wanted. Maybe you should aim a little lower in terms of your standards but you're just bummed that a girl you like ended up banging one of your friends. Atleast you have friends.