If I knew how to stop the thoughts, I'd bottle it and make a fortune. And I hate to break it to you, but you will stumble and fall; we all do. Just pick yourself up and start again.
You cannot change the past; it is set in stone. You cannot predict the future; it doesn't exist.
Try working on the mindfulness exercise and focus on the present. Do what is in front of you right now.
Me: 44, Wife: 39 M: 17 years T: 20 years Bomb on 08/25/09 1/13/10: MC started 1/28/10, 2/8/10: More bombs 8/28/10: Wife moved out No talk of D, no movement