1. Get a video camera, and make sure you have it on when she does anything against you. If she doesn't do anything that you can record with a camera, then come up with something that you can use as a proof: a witness, a tape recorder that can record your phone calls, or in worst case write down what went on and when.
2. Separate from her ASAP and cut all ties. She's not your mother, she probably never was. In your own desparation for not having a mother, you're holding on to her hoping that she may just give you that little love that you need to feel loved and welcomed in this world. You will get that from other but not from her - ever. Hence, move out, or sell the place, or do whatever it takes to never see her again. Forget about her and move on. Cut all ties. And above all - get a lawyer to deal with her as she will do whatever it takes to make your life a living hell that it already is. With a good and honest lawyer you'll be able to preserve your sanity.
3. If she does anything against you (like not letting you sleep, or screaming at you, or attacking you, or threatening you) make sure you are the first who calls police; or call some other authorities like social services or whatever.
Once again: forget about her as your mom; look at her as something you need to get out of your life fast. There are many nice people in this world who love you and who you can trust and she's not the one.