As someone without the best family life, I feel like I may be able to help out here. My way of going about dealing with toxic people is to let them know it. Blocking them out of your social cue isn’t going to stop them or help you (at least in my opinion.) I personally tell them face to face what is bothering me and if they keep doing it, I let them know what will happen. I had to tell my own grandmother that if I left her house in bad terms, we wouldn’t speak again. With that being said, I’m about to move out and cut contract. Sometimes it’s easiest to just get it over with. I hope this helps!