First of all, you should control your diet, but at your age, it is not recommended to control your diet too much. The first is to maintain a balanced nutrition. Don't eat fatty food, eat more dietary fiber (coarse grains, vegetables, etc. ), and don't eat too many snacks, such as potato chips and puffed food. Basically, a normal diet will do. On the basis of controlling diet, the exercise effect is good. Long-term aerobic exercise can mobilize the body's fat, and you can choose the exercise mode that suits you according to your own preferences, such as jogging and brisk walking. But to persevere, generally about 5 times a week, each effective exercise time should exceed 30 minutes, and generally keep sweating slightly. Take your time, lose weight slowly, it's not good to lose weight too fast.