Maybe you could take some of these clothes and put them in a closet in a spare bedroom so she doesn't have so much to choose from. She could be overwhelmed with trying to figure out what to wear. I also put all my mom's summer clothes upstairs and out of the way so she didn't have to wonder what season to dress for.
I was able to get the majority of my mom's clothes out of the house and into the facility without her even knowing because she seemed to wear the same clothes over and over again. I took her clothes that she saves for "nice" which is really just everyday decent stuff. She never even knew it was missing from her closet.
So if you could just limit her outfits to a couple pairs of slacks and tops, I think it would help. BTW, have you looked into a live alert help system? My mom wore what looked like a little watch and you'ld press a button for help like you'ld call 911. She never needed to use it, but it could give you some peace of mind.
Thank you for your kind words and know that you're not alone. Sometimes, especially this week, I've wished I could just run away, but I know I can't...but I do feel that way..and a lot! Hang in there, that's all I can say.