If you really have a big appetite, then I suggest you eat more when you are young, eat seven or eight percent full (that is, you don't feel full, that is, you don't feel hungry), eat slowly, chew slowly, and most importantly, leave the table immediately after eating, stand for about 20 minutes, and then drink less water to help digestion. You must stick to it (otherwise it won't work)
In addition to three meals, you can eat your favorite fruit or coarse grain biscuits or bread when you are hungry (unbearable), but you can't eat it as a dinner.
Of course, it is best to cooperate with some sports. If you are not a sports person, get into the habit of doing housework, help clean at home, tidy your clothes regularly, or go shopping and watch a movie with your favorite friends. K songs are all good choices.
The other thing is to drink more water. You'd better write a plan for yourself and weigh yourself every day. When you find that your weight has changed, I believe that mood is beyond words!
If you like this suggestion, stick to it and make sure you will have a surprise!
Finally, I wish you a happy mood. Nothing is more important than happiness!