Family Issues Support Group
Family issues is a huge range that go from minor conflict to major misbehaviour and even abuse on the part of individual members of the family occur. Whether you feel you are in a dysfunctional family or you're dealing with a very specific issue, this is the place to talk about it and find others who might be going through the same thing.
If you have a fear of ending up like your mother, you probably won't because you have that insight. Start reading books in your spare time. Get into therapy. When they ask what you are reading, tell them.
It's their choice to be in a crappy marriage. Don't worry about their mess. People get what they settle for.
Just focus on your own life. It'll be okay.
Hugs.