Your Personal Operating System (the capstone)

The capstone, meaning the closing board that ties the track together. It draws the six things the last six lessons each fixed on their own, wired into one system that keeps itself running.
Before you start. The last lesson’s whole point was that energy is not willpower - it is a resource you either protect or spend down, and a bad night’s sleep costs you a chunk of tomorrow’s focus before you have made a single decision. Everything below assumes that floor is already in place; skip it and the rest of this system runs on empty.