I wouldn't have thought I could fast either. It's especially hard if you're eating a lot of carbs. But once I switched to a low-carb diet with more fat and protein (eggs for breakfast instead of Corn Chex) it was amazing how I didn't get the cravings. You maintain a much more stable blood sugar level when you don't eat processed carbs.

Also, check out this post I did Friday - http://social-media-university-global.org/2020/02/an-unfortunately-named-book/