[Fern]

Eat less.

It's 200x harder to take it off once youv'e consumed the calories,
so Just. Eat. Less.

No complicated caloric counting, wierdo 1 food diets, just self-discipline. When you find yourself thinking about food, distract yourself by doing something like exercise. Get used to that hungry feeling in the pit of your stomach. Means you're doing something right.