First of all, you need perseverance, which is the premise of doing anything. In the gym, it takes about half an hour to do anaerobic exercise first and consume blood sugar in the body. Then you should do aerobic exercise. The intensity depends on your actual situation, and the time is between 30 and 45 minutes. Too long will consume energy in muscles. Also pay attention to diet and control calories. Stick to it and you will have your own satisfactory results. Come on ~ ~ ~