Hehe, little sister, I am a freshman this year, and I think I can help you. I am a skinny girl, and I am very thin. But in high school, because my home is close to school, it's less than three minutes' walk. Moreover, the care at home is too good, and the study is heavy. I gain almost ten pounds every year. I remember that the first year of high school is less than 90 kg, the second year is 98 kg, and the third year is more than 0/00. Hehe, I am still 100 kilograms, and my height is 160. I didn't realize I was fat before my third year of high school, and I kept eating hard ... Then everyone said that I had become symmetrical, and I realized it was time to lose weight, but I don't know why, the more I tried to lose weight, the faster I gained weight. Alas, I didn't lose weight at that time ... Actually, to tell the truth, I didn't study hard in high school. People said that I would lose at least ten pounds when I went to high school, especially in senior three. Hehe, it's a pity to gain so much weight … I just ate too much and didn't exercise. I think the most important thing for you in high school is to study wholeheartedly (get into a good university, otherwise you will regret it as much as I do). As long as you really study hard, you will no longer care about what you eat and how much you eat, and you will naturally lose weight (because you have no time). In addition, if you really want to lose weight, eat three meals normally, but don't eat, eat more vegetables and miscellaneous grains. Don't eat junk food without nutrition, such as fried cakes, instant noodles, snacks in supermarkets, sausages, snacks and drinks. Waste time, money and weight! It is very important to eat more fruits and drink more water at ordinary times, that is, it can increase satiety, so that you will not overeat, which is good for your body and skin. Don't eat before going to bed at night. You can't stop drinking yogurt. Don't drink too much water, it will cause edema. You can walk outside the classroom more when you are free, which can not only exercise but also ensure the efficiency of the next class. Be diligent and don't always sit and move. There is absolutely no harm. There is still a lot to say, just remember the above, and I'll tell you when I think of it. Be happy. Remember that learning is your first priority.