I'm glad your MIL came through the surgery w/flying colors. Now, it's on to recovery. I hope she is feeling better soon. I hope your h and FIL rested better last night now that she came through the surgery.
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.