Think about it, it's still fortunate. At least not everything has to be done at once. I've left myself some time to catch my breath. That's good.
In the morning, I'll do what I can first, so that I can go to bed earlier at night. Stop grading homework at the appointed time.
First, ensure my own sleep, and then do the extra things. If my health is gone, then what's the point of persisting in all this now?