Renee, Just because I don't post, doesn't mean that I'm not reading. There are numerous posters who can give you excellent advice. Listen to them. They are traveling the same road that you are.
Look after you and leave your xh to twist in the wind, and yes, make his mistakes. Keep the focus on you and your children.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.