I didn't listen to the nail class, and the teacher asked me why. What should I do?

You must first understand the purpose of your study. I want to know that I am studying for myself. Not for teachers, nor for parents. And figure it out. Do you want to study? Is there any other way out if you don't study? Will you regret not having experienced college life? If you just want to get a diploma and go out into the society, then you don't have to worry about how to explain it to the teacher at all. Just communicate with your parents. Focus on what is useful to you (not necessarily reading, it varies from person to person)