Just remember as I had to scour through the boards here this morning to remind myself, DB'ing is about YOU, not your M, not your W, YOU.
Definately, use the time seperated to screw your head back on straight. Once she's out, I strongly recommend one thing that really helped me out and I wish I had done the moment the door closed behind my XW: "de-wife" the house. She opted to leave it, make it yours. If you simply make it appear that you are ready to carry on with life "as-if", in time you will find yourself in that mindset.
I can't tell how many personal set-backs there will be. Just know they will be there and try and establish a plan of action to overcome them.
Puppy hit it spot on, there are so many different phases of remorse and each and every one of them are different. Some intertwine with others, while some contradict others and will do nothing but drive you to the cookoo's nest if try and take in every word as the gospel.
One can NEVER prepare for D. There's a few folks here and there on some of the boards carrying a "o-well if it ends that way attitude, I've got myself covered", but I'll guarentee you, if and when that day comes for them, they'll be crying so hard it's like they shot "Old Yeller' themselves.
What you can do, is the whole purpose, become a better YOU. It's an adage in any situation, the more you're comfortable with yourself, the more others will be comfortable with you.
Me 35/XW 33 S13 & S12 M: 10/17/98 OM & S: 07/08 D final 06/09/09 12/03/09 - 06/13/10 "Piercing" 06/13/10: Engaged to Re-marry 10/17/10 06/25/10: Expecting baby #3 2/14/11