Because you are still young and in the growth stage, I suggest you not to take some measures to reduce your food intake on a large scale, which will cause gastrointestinal dysfunction and be bad for your health. I suggest you adopt the following methods appropriately: 1. Take the method of eating more meals and less food. Eat more than a few times a day in early summer, but control the amount of food each time to ensure that you don't feel hungry. 2, let mother prepare some nutritious food, mainly vegetables, supplemented by low-fat meat, try to put less cooking oil. 3, drink plenty of water, drink at least six glasses of water a day, preferably before meals, so as to control appetite, but you can't resist not eating. A moderate diet is good for your health. 4, moderate exercise, taking advantage of the bright sunshine, go out to do exercise every morning, even if it is just a brisk walk, it can consume a lot of calories and breathe more oxygen. Isn't it great? 5, resolutely put an end to the habit of eating supper, never eat anything after seven o'clock in the evening, and never go into the water after eight o'clock, which is good for the skin. Stick to it for about a month, and by the end of the summer vacation, the eating habits will gradually change back to three meals a day, just like the eating habits at school, but the amount of food should be reduced, and it can be about eight full. I believe that at this time, your stomach has gradually returned to normal size and can't hold too much food, so it should not be difficult to reduce your food intake. Then you will find that you have unconsciously developed good eating habits, gradually lost weight, and your mind is much clearer and more flexible, so you can more easily devote yourself to the upcoming homework. That's all. I wish you success in losing weight, but remember that health is the most important thing! I wish you happiness! References:

I have some personal experiences with my friends, plus what I learned in books, which I hope will help you.