It might help if you told us where you are. Are you on holiday and you are sharing a room? At university? Sharing a house? Do you mean change to a room in the same hotel/halls/house?
And what do you mean that you get along with them but don't fit in?
Best thing you can do, is make yourself so obnoxious that THEY decide to move out. This is quite easily done with copious amounts of alcohol mixed with gooey cakes. Plenty of baked beans to produce stinking farts etc.