Secondly, you need to do some exercise to strengthen your chest muscles. If you can, go to the gym and do systematic training with barbells and dumbbells, which will make you have beautiful pectoralis major muscles (the specific methods will not be mentioned here, and each gym has a full-time coach, which will standardize your movements). If you can't get into the gym, insist on doing push-ups every day, with your hands apart, slightly wider than your shoulders, your fingertips forward, and use the strength of your chest to drive your body up and down (be careful not to just move your ass). You may not be able to do too much at first, step by step, until you can do it one day 100-200. You will see the effect.
Finally, pay attention to diet, don't eat too greasy food, and drink less carbonated drinks (coke, sprite, etc. ), you will succeed. I used to be fat, but now I have successfully lost weight. I hope you can also practice your satisfactory figure! ! !