I used to be a girl like you. In the third year of high school, it reached 144 kg, not fat, but strong.
I have observed a lot of girls who are a little baby fat but small, and found that they all have one thing in common, that is, every move is easy, while a strong girl like me is in a hurry to do everything. So I learned to move gracefully, walking slowly like a walk, including exercise, and trying to save effort. It really works. The most obvious thing is that the muscle mass on the calf is gone, but the skin is still very tight. What I am not satisfied with now is that my arms are still a little thick, which has something to do with housework. Clean up and wash clothes every weekend: (,cleanliness can't be changed.
In addition, the speed of eating is a little slower. I found that most girls who gobble up their meals are very strong (including me), with some exceptions. For example, a friend of mine eats fast, but her chewing speed is really slower than mine (I always wondered how she did it, and later found out that she chewed differently from me, so she chewed and swallowed food very fast). She is very thin. Now, Mm people should not be fooled by some people who eat fast and thin, thinking that chewing speed has nothing to do with being fat and thin. I can assure you that it must be. Those people chew differently.
From my experience above, in short, everything should be slow and easy. I hope I can help you.
Ps: You'd better not take diet pills. Any diet pills will rebound. What determines your figure is whether your lifestyle matches your physical condition.