I am doing the 100 push-ups challenge, where you do small sets of push-ups every other day until you can do two sets of 50, at which point you can probably do one set of 100, or are nearly there. I am doing the easiest tier, and I am pretty good at it. Every couple of weeks you do as many push-ups as you can to make sure you are still on the right tier. It's called an exhaustion test. Yesterday I did my exhaustion test and I got 5. I thought that was pretty bad, but later I remembered I had already done the set of 5, 5, 7, 5, max. "Am I tired now? Is that too many? Am I okay?" gets me enormously fewer push-ups than "Okay, now do 5 again."
I didn't really re-read the directions for an exhaustion test, but I think next time I will just try for 100 and see if I get to 12 or something.
Relatedly, the "max" push-ups I can do after my little sets is always zero, which seems fine to me because look, I did 22 push-ups tonight! But I will enter it into my calendar as the recommended minimum.