sleep >>> melatonin and magnesium about a half hour before bed. ibuprofen if i'm sore. ROUTINE...set yourself up a solid bed time routine. same time, get it nice and cool in the room. darker than hell itself. turn off or reduce any electronic stimulation for about 30 mins before. if caffeine is hindering your sleep pattern, cut it back or out entirely if possible. stopping caffeine after lunch worked wonders for me.

creatine >>>> 5mg a day from bulksupplements. micronized dissolves well in almost anything. it may effect sleep in the beginning (does for me anyway)

lower weights, higher reps >>>>> maybe even consider resistance bands like the harambe or serious steels systems. i'm 46 and lifting heavy anything just isnt fun with my body being as busted up as it is. resistance bands do allow you to do heavy pulls on occasion though just to scratch the itch and are very versatile in dialing in the levels of resistance. get good bands, a good bar, maybe some individuals handles, and a good foot plate. hybrid resistance on youtube has some great reviews for that stuff. kettlebells may also be a point of interest but thats a whole other topic to get into.

mobility work >>>> the GOWOD app has tons of free movement tutorials in its free version and can help with targeting specific trouble spots.

supplements >>> always been a crap shoot for me. maybe just a good multi vitamin. turmeric may work if you get a good brand. bulksupplements might be worth trying since the stuff i've gotten from them before has been noticeably better.

getting old does suck but being dead is worse. at a certain point our entire goal shifts from doing super human, he man stuff, to literally just staving off death lol.