Training old can be pretty f@cked up. It's a fine line to get everything you want to get in training and conditioning-wise and still recover. Luckily I have really started to figure it out.
The best advice, have zero ego. Example. At one time I was able to strict press 405 lbs over my head. I have benched 600 raw in three weight classes and yet still, my favorite comp lift is that 405 press.
Just recently I had rehabbed enough that I could ohp again, it's been years. I have a Viking press setup. The first week I used a 25. The next week I used a 45. For the first real work set the following week I worked up to 90 for 5 and felt I could have comfortably gotten a lot more.
After a deload the next week I programmed 100 for the top set. I could do it fine, however, it just didn't feel right. Seriously, wtf, I was able to put 405 over my head with a regular barbell. Now I'm questioning doing 100 on a Viking press.
I put my ego aside and the following week I dropped it back down to 90 and it felt as it should. Each rep was crisp with no pinches, pains, or glitches. This is an internal battle I have been losing for probably more than five years now. Yeah, 10 lbs can make a difference.
I'm not superman anymore. I can't afford to lose those battles. They cost too much in little injuries that add up to big issues after a while.
Putting one's ego aside is difficult, at least for me anyway, but it's made all the difference in the world with my training as of late. I'm in the best place I have been in years.