Seeking advice for a tough home situation

Assalamu alaikum, I’m a 17-year-old sister and I really need some advice or just someone to talk to. I have an older brother (21). Honestly, I’m feeling pretty helpless right now-my final exams are here, and my home life is just toxic. My father has a huge ego; you can’t speak to him or reason with him at all. He yells, breaks things, and it’s been like this since we were kids. We kind of got used to it, but that doesn’t make it healthy. These last 2-3 years, the fights have gotten worse and more frequent. I feel stuck because my mother wants to leave him, but she goes back and forth-I understand she’s scared. My brother has always been by my side, but now it seems like he might leave because he can’t take it mentally, living in a house where his father beats his wife. I can’t handle it either, but he can go out while I’m stuck here with two emotionally draining people. I just don’t know what to do anymore. Any advice?