Hello, to lose weight, I suggest you control your diet and increase your exercise during school. For example, avoid high-oil, high-fat and high-sugar diets, such as fried, greasy foods and sweet drinks, and eat more coarse grains, fruits and vegetables; Reduce sedentary time and exercise for at least half an hour every day, such as running on a treadmill, skipping rope and sit-ups. Persistence will have an effect and you must exercise more.