I completely disagree with the sentiment here. My 40s have been great because they marked the point in my life when I finally lost my last fuck to give.
The freedom that provides is worth not being able to drink the way I used to in my 30s. Enjoy that achievement.
30's start to notice you can't do stuff you used to be able to do along with aches and pains but they are still once in awhile. 40's they are no longer once in awhile. 50's you are sorta used to them and its just another part of life is pain.
This honestly went the other way around for me. There was a lot of stuff I couldn't manage as a teenager and in my 20s, and a lot of pain I had that I don't have anymore. Though I definitely have to do more negotiating with my body about food.
But I started taking estrogen in my early 30s, which seemed to make a big difference.