I'm a bodybuilder. Let me tell you, I used to weigh 60KG, but now I weigh 75KG. The key is to supplement protein more, and then do anaerobic exercise. The gym has equipment, you can try it, but as soon as the amount of exercise goes up, the nutrition has to keep up and need to be synchronized. Everything you do is free, and everything you do is free practice. ! ! I hope I can help you, as long as you practice hard in the first half of the year, believe me. There's another selfish idea. Give it to me. Thank you.