I've been grappling with my own mortality lately too, but with less pressure than you who have received a diagnosis. I'm happy that you are finding equanimity in your process.

Your piece here is incredibly insightful. If you'd like to read more about this neuro-psychological development of children in early childhood, as well as the patterns of childrearing in history (hold on to your hankie as you read the first part of the book) - check out Parenting for a Peaceful World by Robin Grille

https://www.amazon.com/Parenting-Peaceful-World-Robin-Grille/dp/0992360404. It's a real doozy of a read.

Be well and keep enjoying the days you have here!