If you change classes, your study progress will be slower. You can ask more and learn more. You can study online during the evening self-study hours to catch up with the progress. In the evening, the class teacher will follow you, and you can also discuss with your classmates and teachers. As long as you work hard, the problem is not big and you can basically catch up.

Now it is basically to study and review until the college entrance examination in the spring of 2022, and there is still time to study.