You did an excellent job of keeping your anxiety in check. Funerals are stressful on everyone, especially the direct family members. I am glad your D22 and xh attended and he was made to feel welcome. Now, he has a lot to think about and you may not hear from him for a while.
For now, try to keep your focus on today.
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.