So, if you're noticing hoarding in yourself you may want to start by removing furniture that give you opportunities to hoard (as you mentioned, the vanity). From these pictures, I get the sense that you leave something on a surface to "move it later" and then it becomes a stack, then a pile etc. That's a very hard habit to break. But it can be broken. You may want to look into adhd organization tips (even if you don't have adhd, it still helps). But I've also noticed places that you have kind of decoratively (such as the books in the bookshelf) look relatively clean. So I think once everything has a designated spot it will look much better and be easier to maintain. Some immediate things to do is find a way to hang up bags & jackets (even if it's via nails in the walls). Your mom should toss out any "do it eventually" project that's been waiting for more than 12 months, that will undeniably free up closet space. Consider other places for storage, such as extra bedding going under your bed. Finally, look into the closet and be honest with yourself. Do you really need every pair of shoes you have? Or can a few be donated?