What if my sister is taller than me? A friend thought I was her brother a few days ago, so sad that I didn't grow taller.

According to common sense, boys will grow up later than girls! So you can still improve yourself from all aspects of life in the development stage. Pay more attention to a balanced diet in life. Do more exercise in your life. . . Even if there is still a gap with girls, don't feel lost. True self-confidence emanates from the inside out, not just the height distance!