Sorry you are having such a hard time. I've been following your threads a bit, and my main advice would be to *stop telling your wife what she needs to do*! Work on herself, give it time.... Etc. You are not her parent or counselor. Quit trying to get her to DB like you want her to! Sorry to sound harsh, but you have really got to stop that. Be open. Use I statements. If you must, you can share what has worked for you. That doesn't mean it will work for her. Give her space to figure out what will work for her.
Hang in there and appreciate and accept what she has done so far to help your M without further expectations or demands. Patience patience patience.
Hang in there. Don't lose track of your progress. Focus on yourself, rather than on what you want your W to do.