A visitation schedule would help in setting up times to see the children. Some parents have made up calendars and posted them to their spouses so that both parties are aware of when the children will be w/both parents. It will help alleviate any friction that may be created when you ask to see your children.

Of course, everything is your fault. If you said the sky was blue, she would disagree. No matter what you do or don't do, she will find fault. That's why is it important to stay the course, remain calm and 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.