I have no insight on this, and will not even try, but it reminds me of this thought that comes through my head every year during stage race season:

How do you think the folks on 20-day long stage races like the Tour handle this? Of course they're not pushing their max every day, of course they're extremely trained racing machines. But...

Anyway.

Don't underestimate the mental effort you've thrown into this. I hope you recover quickly!