Judo was good; every workout in which my currently fragile and inflexible body is not injured is the best!
At one point, I did think I hurt my shoulder. There was a new black belt at class, and I worked out with him. He was cool, but he kept on insisting that I do kuzushi properly and lift him off his heels.
The problem is, like almost everyone in class, he's like 20-30 lbs. heavier than me, and I'm not in the best shape right now. It is a lot of work for my shoulder to get him off-balance. My shoulder felt weird after a few sets of throws, so I switched to seoinage, even though tai otoshi was what we were trying to do. In fact, in general, I'm trying to avoid throws that need
classical kuzushi because it's just way too much effort.
Anyway, it felt better later.
Endurance-wise, I got in some newaza randori (hooray for some breaks with white belts), and three rounds of standing randori. Still exhausting, as expected. It is going to be quite a while until I'm "normal". The only throws I landed were kouchi makikomi, which is reliable, but I need to develop at least one other reliable throw. I guess I also have osotogari, but only as a counter.