Mom and dad should probably not HAVE to do anything for her. I wish I knew how bitterness like this arises in families. Despite my oldest daughter's behavior, we got along pretty well. 6 years ago when my daughter's father died my girls started to argue and became vipers towards each other. They fought as kids but I think that's normal. I always take the blame and it's killing me. You know what you're doing and have self-respect. I admire you for how you've pulled through on your own. If you had enablers do you think you would have gotten better? Enablers keep sick people sick.