I rarely max out anymore. Isn't worth it...ego vs chance of injury. Wasn't easy to do as I'm lbs for lbs one of the strongest guys in the gym.
I used to work around the 5 rep range. Now it's more in the 8-12, except legs, I go pass 20. Use machines that you put weights on more than I used to. May restrict movement and not engage supporting muscles as much...but a LOT less chance of injury if you are going higher in weights with no spotter.
Do more HITT. I hate doing $hit like burpees but part of the conditioning. Seldom bulk anymore...my weight stays within 3-4 lbs all year long. Don't do orals much anymore because I like to drink a beer a couple times a week.
Donate blood every two months. Talk fish oil. Cut carbs way down...so no breads, potatoes, or pasta...but I love wheat beer. Other than beer, everything I drink has no calories. Eat mostly chicken, fish and vegs.
Date younger women..much younger...like half my age minus 5 (but legal). Keeps you young...they love sex with someone that knows what they are doing.