HWS,

Sounds like you are ALREADY going to do the second best thing you can... move into a place of your own with no roommates.

The first, would be to move into a place you own. If you grow with someone else around, or in someone else's house, or in an apartment someone else owns... you always run the risk of being caught.

Smell, nosey people/parents, landlords who go into people's apartments illegally while they are out and go through their stuff.

Getting away from your roommate's mom is step one! Maybe she wants some? Leave a couple of rollos in plain view in case she comes back. If she takes them, or one... you know what to do!