That is wonderful. The kids will enjoy the holiday season. Just remember...be yourself and keep things simple. If things get a bit stressful, take a walk or get in the car and drive a bit. You do not have to stay and deal w/the tense situation. The women can handle it for a bit.
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.