Every situation is unique but similar if that makes any sense. There are a lot of people that will shed light but look at Cadet's post and try to adhere to that. While my situation is different than yours, I am sure that the emotions are pretty similar, and I did many of the classic mistakes to reconcile as well. Only about a week into Last Resort Technique, but I'll tell you what, I have myself back. Try it, DETACH, be the best man and father that you can be. The advice that someone put on my thread which is so true, is become the man that only a fool would leave.
If it doesn't work out, at least you will have the building blocks to know that you can survive without her in place. Better than get to that place now. If it does work out, she will come back to a man stronger than the one that she left.