You'd better put on some special underwear. Something to remind you subconsciously that you're a different man now.
Had a good talk w/ a friend going through her own marriage issues, and the idea came up that there can be a "core" issue underneath all the visible problems. At the very least I think it's a useful concept to turn over in our heads. Instead of thinking of your (my) problems being a hodge-podge collection of various mis-steps and bad habits, think about what is a core issue for your W when she thinks of you. She's not attracted to you any more because ... you're not masculine enough (to her on-going perception). Maybe? Whatever that core issue might be for you (and for me), we need to project that from our inner selves.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final