Wife ... said 'I will be back when you get your crap together'. ... Any chance of reconciling? This woman is my world.
The answer to your question is in your own post.
Man, I would pay a million bucks to be in your shoes.
If she is your world, MOVE HEAVEN AND EARTH to get her back. Get your act together one thousand percent -- get all the help you can get from book, counselors, pastors, etc -- to become a great guy. She'll see it, and want you back.
It'll be the hardest thing you'll ever do in your life, but if you fail, then you get to do even a harder thing: a divorce. Do it man.... Wish you luck.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final