Yes, you can stretch more. There is still room for boys until they are 25. It is helpful to do more exercise. My classmates are younger and taller than me. It's hard to stand next to them. I am 2 1. I'm in college. I have been exercising for five months since last year. I have grown two centimeters. I do it about four times a week. I don't need to be tired every time. I did it in Yang Yunfeng's exercise diary. Leg press was divided into five groups, each group pressed for 25s, stretched for 25s, bent down to touch the ground for 25s and touched the ground for 25s. At first, the whole body aches, especially the back and legs, but it takes hard exercise to adapt. Procrastination can't be used to. It feels good to do it early. Then do it, don't delay!