I trust things are working out for you, Wintersparrow. No matter what, hang on to your hope for the future and cherish the good things around you--like your children and your true friends.
My daughter went through a surprise divorce several years ago. In retrospect, it was the best thing that could have happened to her.
Time marches on, and it's amazing how fast things can turn around after the worst has passed.
A lot of good advice has already been offered, but I do have a couple of things to add.
1. The man you divorce is never the man you married. It's like an Invasion of the Body Snatchers thing. They just look the same. So guard yourself in dealing with the new Total Stranger and make no assumptions based on the character of the man you married. He isn't there anymore. That also means you owe the Total Stranger nothing, emotionally.
2. Start a Divorce Diary, and write down everything that happens along the way, not just with the process of the divorce, but with yourself and your family. Your daily life.
Start it now and write in it every day. This will not only keeps the facts straight, but will let you see the progress you are making toward turning your life around and pointing it in the direction you want.
It will also keep you from forgetting what happened. (Sounds crazy, huh? How could you ever forget any thing about this?)
The pain of a divorce and the pain of childbirth are remarkably similar. Within a short time Nature starts blurring the details, until you finally remember only a description of the events rather than the events themselves. And that description is very mutable and can become very inaccurate. You will be surprised what even five years can do.
Your Divorce Diary will be an accurate description of what happened. One you can rely on. You may never "need" what is in your Diary, but the time may come when your children will.
When they need to understand what happened, for example, as adults themselves. Or (hopefully not) when something similar happens to them.
Once the present has moved into the past, you can be free from it--but it's usually wise to remember what you are free from.