Yes, Jbug, I know all about it! When my daughter was growing up, her room was a disaster. You couldn't open the closet door in fear of an avalanche of stuff! One time, trying to clean the closet, I encountered worms coming out of old chestnuts in the bottom of the closet! Old food sitting in the windows. She wouldn't do a thing to pick up after herself, and hubby was no help in enforcing any kind of rules, so I finally just kept the door shut, as others have said here!

I agree with KD and others here. This is your space, and your mom needs to let you take care of it as you see fit.
Patty