you're gonna have to get mad as fucking hell and fix this situation yourself if you want it to be fixed. Your mother can't help you now. Only you can help you.
https://www.youtube.com/watch?v=TqNsvygUc0I
I suggest you run, not walk away. The Bible says better a handful of food alone in the dark than in a wide house full of people who don't know what is best for you.
You are not entering a relationship from your own power, and so therefore the exchange is going to be a loss for you, because you didn't choose it from a place of choosing from many options.