You aren't ugly or dirty. No one else can make you ugly or dirty, they can only make themselves ugly or dirty, imo. You haven't don't that.

Have you thought about getting a box to put stuff into, out of site, for when you are in the room and don't want to look at everything? Maybe, in the box can be things you do like more, that you take out to make room for the stuff you don't like?

Someone else can do the same thing, if they don't like your stuff as much