Your story sounds a lot like that of a friend of mine so I would suggest -
Move.
Abandon everyone who isn't a positive influence in your life. Meet new friends. Do new things. If people dislike you for it, forget them, it's not up to them. Rise above it. If you feel someone's been lying to you, get confrontational, if they hate you for it, have you really lost anything?
If college isn't feeling right, go and see someone about it - department staff, tutors, guidance counsellor, there will be someone who can advise you. Change your modules, change your major, go to different clubs. If you're not there yet, you might be able to postpone it for a year to get things worked out. If you've just started, the first term's rough on everyone.
Find a hobby, take up a sport, everyone says exercise helps lift one's mood.
Fuck it.
Buy a kilt.