You are in as good a place as one could hope for at this point. You are handling it well all things considered.
Smart to have your brother accompany you with l. 50/50 divorces really take some weight off the mind. You are doing all of the right things to heal and progress. I would suggest adding some social interactions to your GAL as this will help you see life after all of this. Your list of progression is phenomenal and one you should have written down in a place that you can reference in tough moments.
Here is some additional information that I found helpful that you may add to your plan for healing and strength.
Check out Ted Talks by, Guy Winch Shawn Achor Brent Brown Matthieu Ricard Mindful Meditation has benefited me in controlling my thoughts.
Keep on the path you have journaled here. You are headed in the right direction. The road will contain more obstacles, but with each passing day that you put in the heavy lifting to heal, you will be more prepared.
Many LBS could learn a thing or two from you and your example. You have embraced so many good plans of action and habits in such a short time and this is why you will come out on the other side, strong, healed, a better person and a great dad.
