That's a beefy Post-Mortem, nice. If you can give so much effort to this, I'd guess you'll be fine.
"I found keeping everything as a simple .txt document to be the most effective for me."
That doesn't sound like a bad idea at all.
"As the old adage goes: "No plan survives first contact with the enemy," and I think that's especially true when it comes to any sort of creative endeavor."
Big true.