Sign up with your piano teacher, and he will help you get it done and give you an admission ticket. Take the admission ticket to the designated place and wait for the draw to determine your appearance order. There is a piano and two judges in the examination room. Bow before you go in. Then sit calmly on the piano bench, listen to the guidance of the judges, and express the songs that have been memorized skillfully and emotionally. After the play, take another bow and leave.
If you really break the music bullet, the premise is that due to excessive tension, when the performance is not up to your normal level, you can kindly ask: "I am too nervous, can I do it again?" This is the only chance.
Poor me, I had such a cruel experience when I was seven years old.