Honestly I think you are doing great right now. Telling her consistently that you don't want a divorce and that you want to fight for your marriage is an excellent thing to do. Letting her know consistently that you are following through on your action plan to address this issue (dr's, therapists, prescriptions, diet, exercise...whatever it is) is great! Stating that you are determined to SHOW her you are making permanent changes is great! Honestly, you are doing what I believe it takes at this point....it's just going to take TIME and that will be the frustrating part for you. Earning someone's trust back is a very difficult thing to do...but it CAN be done.