Hi JR. Sorry your here. The best advice is to read Cadets homework and re read it over and over.
From my experience you need to accept that ( for now ) your W is gone. In her head the M is over and she's planning her exit. Once you truly accept that you can act from a place of reality. Get on with your life , improve yourself for you and your kids. If you have issues ( and we all do ) work on them but do all this for you and not as a ruse to attract W back. If the new you becomes attractive to your W and she wants a new R with you then great but even if it doesn't you are becoming the best you that you can be and that will be a far greater gift for yourself