Losing weight means adding and subtracting, increasing exercise and reducing energy intake. It is impossible to lose weight after a few days of exercise. Even if you lose weight, the water in the fat is reduced, and the fat is not less. Exercise should be persistent and moderate. Do aerobic exercise for about 30 minutes every day, so you can sweat. Playing basketball will not be very effective. If you want to run, running can not only reduce the fat of limbs, but also reduce the fat of internal organs. Keep exercising for three months every day, and your constitution will change fundamentally. Reducing calorie intake means that you have to control your mouth, which may be the hardest! Especially after 9 pm, you can't eat food containing calories. Losing weight is a marathon, not a 100 meter sprint. Only persistence can win.