I don't want to go to make up lessons. How to tell the teacher euphemistically?

1, hello, teacher! Thank you very much for your patient teaching and help. However, I have recently found that I have encountered some puzzles and challenges in my study, and I need more time and energy to digest and understand myself. Therefore, in order to better adjust my study status, I decided to temporarily stop attending make-up classes. I believe that under your guidance, I will be able to achieve better results in my future study. Thank you again for your understanding and support.

2. Hello, teacher! I want to talk to you about making up lessons. I need more personal space and time to learn and improve myself recently. Therefore, in order to better arrange my study plan, I decided to temporarily quit making up lessons. I know this may bring you some inconvenience, but I promise to study hard and improve my academic performance.