On big days I can feel the embouchure going, and pushing through just makes the next day worse. How do you structure a long practice day so you actually recover - rest ratios, what to practise when tired, when to call it?
Stagger it: hard and high stuff early, then move to low and soft and mental work once you feel fatigue. The moment tone starts to spread, that’s the signal to switch to score study, not to push one more rep.