Eat a better lunch, eat more vegetables, don't eat too much rice, as long as you are not hungry.
Eat only apples or milk for dinner, eat some other fruits, and drink some yogurt later. You can't eat before going to bed. If you eat a lot, stay up late. Otherwise, you will feel hungry and eat a lot the next morning.
If you don't want your parents to find out, go home late and say that you have already had dinner. Don't worry them.
★ People who like to eat snacks can't control themselves, so don't put snacks around.
★ Be sure to stick to it and don't give up halfway, otherwise you won't eat your favorite high-calorie food for a long time, and you will eat a lot at once. It's not that simple. Maybe a lot fatter.
★ Exercise more, but don't overdo it, or you will grow muscles.
Don't eat anything else between meals. If you are really hungry, bring a box of milk and drink a little when you are hungry.
★ When classmates and friends give you snacks, tell them that you are losing weight and don't eat snacks, and let them supervise you.
★ Do not eat junk food, such as fast food, and resolutely resist! Otherwise, the body will collapse and it will be too late to regret it.
It's my own real experience (I lost 20 Jin _, but my parents wouldn't let me, saying that the child is still growing ...). I hope I can help you and I believe you can!