Struggling with parents' instability - need advice

Assalamu alaikum, This is a bit of a vent but I’ll keep it short. I’m really worn out from dealing with my parents’ mental problems my whole life. My siblings and I respected them and followed the rules growing up, but it’s much harder now as adults. Both my siblings moved out and have their own households, so I’m left trying to handle their constant arguing. They openly despise each other and I keep thinking they should just separate already. We’ve been dragged into their fights since childhood, and sometimes we’re even blamed for their problems. I’m tired of being talked to like a child. I know they’re getting older, but they raised us in an environment full of rage and stress, and now they’re upset that we have the same anxiety and stress issues. It’s frustrating. I want to honor them and be patient because I’m aware of the seriousness of disrespecting parents, but honestly I’m at my limit and Allah knows what I’m going through. I’m 26, married, but not living with my husband yet, so technically I’m still part of the household. I struggle to control my anger and sometimes say hurtful things in arguments, like I did with my mother just now. She does things deliberately to provoke me and pushes until I snap. I don’t even know how I keep living there. Will Allah forgive me for how I behave toward them, even though I’m trying to be patient? Do I need to apologise to them even if I don’t feel sincere and believe they don’t deserve it? Any advice on how to cope, manage anger, and balance duty to parents with self-preservation would be really appreciated. Jazakum Allah khayr.