So I took in my teenage sister about a year and a half ago my mom just wouldn't take care of her my…

So I took in my teenage sister about a year and a half ago my mom just wouldn't take care of her my mom has 6 kids and 0 motherly instincts 4 ended up in foster care and all she had to do was take care of the last 2 (didn't happen). Anyway her and my son shared a room everything was brand new the beds the 40 inch tv the dressers I rarely had to clean it before she came. I had to move my son out of the room last month because it smelled so bad. She urinated on the beds destroyed his tv wrote and carved in his dresser drawers the carpet is ruined and if the door is open for more than 30 seconds my house starts to reek. I've taken her to doctors therapists and there is no sexual trauma and when they asked her why she won't go to the bathroom she said sometimes she just doesn't feel like it. So I gave her till March them she has to leave I can't deal with the lying, stealing, lack of respect for my sons space, poor grades and bad behavior in school. Am I wrong? I've been called super women up but poor hygiene no self respect no regards for the future and lack of dicipline is my kryptonite.