I'm living in a student dorm with 5 other people under 25. 4women, 1 man. Never see 1 of the women and the other fella unless they have class the next morning. But the 3 other women are here all week.

They've recently gotten the attitude that they can do what ever they please if they all agree on it, I have to do as they say apparently

I can easily have one thrown out(uses drugs), but I'm not sure how to get the other 2 in line. Any suggestions?