Don't go on a diet without restraint. If you don't talk about your body, can you have the willpower to control it and gain weight? Look it up online because it confuses your body's judgment on starch intake. )
Water intake should also be moderate (although most people lack water)
Doing some "slimming exercise" on the face, that is, some massage and the like, can also slow down wrinkles, and it doesn't have to be scientific (there are many books on this subject online)
There are other recommended health exercises, such as yoga.
The most important thing is to form habits, get rid of previous bad habits and prevent rebound.
Anyway, health is the most important thing. My stomach trouble is dying. . .