Losing weight depends on the body's own natural metabolism. It is not good or healthy to improve this metabolic level only through diet or drugs. It is best to keep aerobic exercise while maintaining daily nutrition.
Ensure reasonable work and rest, go to bed early and get up early, and don't stay up late.
Ensure a reasonable diet structure, eat more in the morning, eat less staple food at lunch and dinner, don't eat cold drinks, and drink more water at ordinary times.
Ensure a certain amount of exercise, and run in the playground at least once every other day for 50 minutes at a time, for about 3 months (if you can't run any longer, don't walk at a brisk pace until you feel strong).