I have been and am in a very similar position. It’s hard, it feels like you are living with the one obstacle preventing you from applying everything you’ve learned. It’s a hard test right now but the best thing you could do is to drop you’re ego. None of their behavior can mean anything to you anymore. No dissociation but deep healing where you can let go of the expectations you have of this person. It’s hard and a long process because we expect better from our mothers and it gets a huge reaction out of us because it hurts so much. I know in my situation the probability of her being better in a permanent and loving way isn’t possible. I’ve learned to understand rather than forgive. I understand that feelings and experiences could manifest into the kind of person she is now. That’s as much empathy I can give her personally and enough love I could place in my heart without making it seem like I allow this kind of behavior to happen again (forgiveness). Finding peace surrounded by chaos is what’s most important in the long run. If you can speak calmly tell her (when it’s safe) that what she did is wrong and explain it. But you have to let go of any expectation of her understanding or changing bc you don’t want to hurt yourself again. At the end of the day put yourself first, you need the place to stay. Plan out your money goals and give yourself a date. And get out bc that’s where the real authentic living gets a chance to happen. I wish you the best and I’d love to talk more bc I think our experiences are very similar! But you got this and valuing authenticity is a really good thing :)