First off DB and DR, refer to Divorce Busting and Divorce Remedy. In there are all the principles that you will run into on this site. Go out and get a copy ASAP! The answers to alot of your questions are in there.
Next...stop being scared. This is going to be a long process so you're going to have to stop panicking and start coming up with a plan.
I tell you one thing though. It's going to be the toughest thing you're ever going to do in your life. It's going to be counter-intuitive. It's going to go against everything you believe you should do. But if you want to try saving your marriage, give it a shot.
This process will test you in ways you never imagined. And it will be HARD. Are you willing to put in the commitment?
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.