That sounds like an interesting project. I command your dedication. I’ve worked four years on and off on the same project (a game) and even though I’m still very much motivated, it’s still not easy.
Writing is an incredible way to express oneself, and I never expected I would have so much to say. I like the idea of editing days later. When I read things I write a few days later, I almost always find issues.
Childhood stories are powerful indeed, because they tend to be more personal and vulnerable.
Anyway, good luck with the memoirs!