Being generally mindful of what you eat and how much you weigh should be second nature to you, not something you start doing frantically when you are 50 pounds

Being generally mindful of what you eat and how much you weigh should be second nature to you, not something you start doing frantically when you are 50 pounds overweight. Weigh yourself at least once a week in a consistent fashion (say, in the morning after peeing and pooping). If you notice your weight drifting up (> 1 lb over long-term baseline) for two weeks, do a quick audit of your diet, cut on excess sugar, carbs etc. until it's back to the baseline. It's relatively trivial to lose 1-2lbs over a few weeks. But doing it once you are 50 lbs overweight will be one of the hardest things you will do, coz you will feel like shit on most days. Also, if you have not generally been athletic in your youth, beware of doing extreme bulk-cut cycles to gain muscle in your 30s and later. It's easy to gain fat, hard to gain muscle, and you are much more likely to end up just fat while convincing yourself you are 'bulking'.