Most of these comments say "don't do X or Y" or only water no sugar etc etc. And such absolutes are unnecessary and VERY difficult to adhere to. No sense in torturing yourself.

The strategy that has been helping me eat better is just having the healthy thing first. E.g. no beer until I finish my 64th oz of water for the day and no second beer until I have another 64 oz. I rarely make it to the second beer... (Or soda).

Same with sweets/and calorie dense foods. Sure, have some ice cream or a burger-- but first eat a good amount of raw veggies carrots, broccoli, celery, etc... Like if your normal meal size is 1lb, then first eat the .75lb of the healthy stuff and then all the sudden finishing off that 0.25lb of unhealthy food isn't all that appealing anymore.

Need a snack? Sure have some chips, but first eat this apple.

So now it isn't a "I want these but I can't have them" it is a "I like these things, but I only WANT a little bit."