Find a mirror and identify it yourself. If the arch of your palate is higher, you sing tenor. If yours is relatively flat, you can sing the boy’s middle school. You can check the level of the people around you.

Generally speaking, the appraisal agency will beat you to death with a stick. They say you are a boy, so you are a boy? uncertain.

There was a tenor in history who had been singing for most of his life and had a good reputation. Later he changed to bass and became famous all over the world.

I still have a simple way. If you are tall and have a long neck, you will sing in the male middle school. If you have a short neck, sing tenor. Because the length of the neck is related to the length of the reflection line.

If you can sing G. easily now, then you can practice tenor without any worries. If you have difficulty with the high F, let’s sing the music from the boys’ middle school first.

Study hypopharyngeal sounds. Baidu search Lin Junqing's throat sound. Watch all 8 episodes carefully.

No matter you are a tall boy or a middle boy, you will benefit.