For boys, exercise and dieting are king!
Exercise: Sweat a lot during exercise, but don't increase your appetite. Drink water when you are hungry. In the evening, you can choose sit-ups, running, and playing ball … see if you like it.
Dieting: You can save dinner for three meals, replace it with apples, or eat less step by step. Don't eat enough for every meal, just do it. Anyway, no supper! !
Losing weight is the most troublesome thing, but persistence is effective. Don't muddle along!