The situation is similar. I am in high school, 163cm, 62kg→5 1kg, for three months. Diet, reduce staple food, eat more fruits and vegetables, eat nuts and white meat in moderation, as much as milk, eggs and fish, and try to add yogurt to fruits at night. Exercise, jog 2000 meters every day, do 50 sit-ups, and if possible, try Duoyan Zheng, Pilates or yoga. I hope I can help _