I like to start any workout with a superset of either chin-ups or push-ups, that's the only counting I really do. Otherwise I just go until I can't go, then rest, and repeat or do something else. But, I'm not a progress junkie, I'm a feel-good junkie. So it's all in your preferences. I'm perfectly happy being at 20 chin-ups in a set, knowing I'll probably add one more next year. Remembering a day when I could only do like three chin-ups, this is already victory. But, yes, to exhaustion, usually not remembering my counts.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.