But you're ignoring a reality. Besides school, there are many people in society who are better than you, which you can't stop. You should keep your balance. If she is a rookie, even if you teach him by hand, he is still a rookie. If she (he) is already excellent, even if you don't tell her anything, she (he) will still succeed, and you can't stop it.
If you are good enough, you won't be afraid of her or he will surpass you. It is because you are afraid of her that he will surpass you, which shows that he (she) is really excellent in some fields, which is a microcosm of your inner escape.
A truly powerful person is not afraid that anyone is better than himself. Try to make yourself better.
Making friends with the strong will be a great asset in your life.
As the saying goes, "those who are near the ink are black, and those who are near the ink are black." Why not encourage each other? Is it bad to be friends?