My wife had a bad family life and a bipolar best friend. It was really bad for her, decades later she is much better.

Ultimately what helped her is a ratio thing. She introduced more people in her life that are not assholes. Her father to this day is verbally abusive as an adult, but a lot of the things he says now that would have made her break down as a teenager, now brush off her. This js only possible, because she has plenty of people around her that tell her the opposite.

Building up a community of support is the foundation to a better life. She rarely interacts with her family anymore by choice, but she has plenty of people around her who love her.