You can use your play time to forget to eat, and you must control your diet: have a good breakfast and a full lunch.
Eat less at dinner, just be full around 7: 08 (note: eating less at dinner is the key)
In addition, we should have a good attitude! ! ! You see, you are in grade three, and you should have a girl you like. Even if you don't, you will soon have one. If you have a good figure, girls will also like you.
Oh, by the way, after the summer vacation, I'm in grade three, too. I still remember that a month ago, the height of 163 was 108 kg, and now I have lost 96 kg by this method. So, abortion wishes you success! O(∩_∩)O~