Eating something similar to a keto diet (Mostly eggs, milk, coconut oil). Once you get past the adaptation phase, it's almost impossible to overeat. Starches (on their own) taste bland and the mix of fat and protein has such a saitation value that it's impossible to overeat to any near extent that a modern diet provokes.

Weightlifting but focusing on the work my muscles are actually doing as opposed to seeing a high number go quick. Three warmup sets and a high intensity failure set, with the warmup sets just training you to do the exercise in the proper form before you do it. Because a lot of people cheat the work their muscles are trying to do by crutching on momentum instead of letting their muscles have control of the weight. That would be a thing I wish I could indoctrinate into every every beginner. (DON'T COAST ON MOMENTUM)

Former smoker who has occassional cravings, liquid nicotine has been a life saver. Properly distributed, a giveaway of a three month supply would probably be the most cost-effective humanitarian mission for the homeless in the US.

Ignore most news. A radical acceptance that there's no point in paying attention to the equivalent of amateur illusions. It's a lot of central nervous system parasitics.