I'm glad to read that you were able to sleep last night and feel at peace. Let go, let God!
I am tickled to read that your son's teacher is "way cool". That's half the battle of getting kids to like school.
Please take care of yourself.
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.