Family and health issues

I'm going through a very difficult situation and feeling very lonely. I live with my mother, but she doesn't support me regarding a serious issue I had with my brother, who assaulted me. My father, who has also been abusive towards me, has stopped supporting me financially as a form of retaliation for deciding to stay at my mother's house instead of going with him. This affects me a lot because I have an illness that requires expensive medication and treatment, and now I don't know how I'm going to afford it. I can't leave here because I'm not physically well, so I can't work, but being in this environment makes me feel even worse emotionally. I would really appreciate talking to someone who understands.