I haven't read NMMNG but I've seen it referenced quite a few times lately and guess I should.
I hear you - I'm trying. I do OK most times but faulter on occasion. For me it is a matter of getting my wife to forgive me - not me her. I wasn't supportive when I should have been and seriously damaged our relationship. I'm trying to make up for it. She isn't a forgive and forget person. Somehow I have to get her to believe in me again. It may not be possible but I am going to give it my best shot. I am handicapped DB wise. I've been divorced and am not afraid of it and know life will be fine afterwards. Thus... sometimes I get down and say F it - I'll start over - I'm still young enough. I think she's worth the effort but dang it if sometimes I feel the work is too much - when at times it seems so little result is happening. I think it is and will be worth it and will/am continuing to try.