Little sister, you are only 12 years old and you have to lose weight? But 12 years old is still growing. But I know you won't listen. Ha ha. Because my sister was clamoring to lose weight. Just like you. If you want to lose weight successfully in the summer vacation, you can get up early and go to bed early to ensure the most regular schedule. Eat more vegetables and less rice and pasta for lunch after breakfast. Vegetables are very helpful to lose weight. You should eat fruit for dinner. If you are really hungry, have some coarse fiber biscuits. Remember to do more exercise. You can jump rubber bands, jump rope or something. This will work until you sweat. You can also go swimming in summer. That's how my sister was cut. There is no need to worry about rebound in this way of losing weight. You must never take diet pills. And Baidu has too many advertisements. Don't believe it easily. I wish you success in losing weight. Come on! ! !