Challenge your beliefs. It does not have to. It is your choice.
Focus on enjoying your interactions with your children. Do not let your W's "Emotional State" effect yours. If you need "Josh time" make sure to have agreements with W that let both of you go do whatever each of needs to do alone.
"W, Friday I plan on taking the kids to dinner and then the park" "W, Saturday evening I have some personal things to deal with. Are you OK watching the kids while I am out"
Transition into alternating parenting responsibilities. Get agreements.
Get a firm landing ground for parenting responsibilities. Exceptions will come up and it is important to be accommodating.
Keep it simple. Do not argue. Listen. Take time to think and make decisions.
"I am not sure, I will let you know when I have decided".
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712