Losing weight depends on long-term moderate and low-intensity exercise (aerobic exercise), and you can use running and skipping rope (don't worry about the calf muscles, stretch the calf muscles after exercise).
It is recommended to do some abdominal exercises after running or skipping rope for half an hour (slowly, without stopping for half an hour, step by step).
Abdominal exercise: flat support (one of the most effective ways to exercise core muscles), sit-ups, abdomen reduction, leg hanging, supine leg lifting and so on. Stretch abdominal muscles after exercise. Stick to it for a while, and you will find that your abdomen is very beautiful.
Drink plenty of water, moderate water can lose weight, but drinking less water is easy to gain weight. Eat what you usually eat (don't eat too many high-calorie foods such as cakes and hamburgers. It's okay to eat once a week, but it's best not to eat).