I certainly have had this problem. I just started school in august and i dont really have any friends on my floor. I have different interests and dress differently and am also drug free while everyone else on my floor is completely different and spends there weekends drinking. My roomate and i get along pretty well, but im trying to move somewhere else on campus where people may have similar interests. I suggest trying to make friends with the same interests as you, or to join a club or some sort of extra curricular activity. Get yourself out there. I have yet to do that. I really wouldnt worry about the problem in general though, im not and things seem to have sort of adjusted for themselves. Just do what you enjoy but avoid keeping to yourself all the time. A little time for yourself is nice, but you dont want to isolate yourself. Good luck, and keep it real. Thinking about the situation may just get you more frustrated and then you may just give off a bad vibe. Give it time. Peace