I finally got a clue a couple of years ago when it dawned on me that Father Time is undefeated and always wins.
At some age everyone realizes they are not immortal and go 1 of 2 ways, I chose to try to be healthier, more physical activity, eating better, drinking less, remove as much stress as possible, etc., I may not live any longer, but I will feel better until that time comes.
Check out the podcast in post 10.
It is not that you are doing anything wrong but you may be playing the wrong game.