I think, for almost all of us, the most difficult part of DB is getting into the appropriate mindset. The actions you need to take seem so counter-intuitive that it's difficult to comprehend that it could be effective.
Ultimately, you need to let go of your wife and marriage and focus on improving your life and living your life to the fullest. Most of us seem to have to suffer through a lot of psychological pain before we can embrace that mindset (and some never get there).
