Don't be so stressed. Think more about the beautiful school life. Besides, you don't have to be in such a hurry. There are not many people who really study hard during the summer vacation, so you can't be too bad.

However, we should pay attention to learning methods, improve efficiency, and clarify the main and branch lines of knowledge. For example, English can practice listening by memorizing words, and math and physics can do problems to see what the reminders are.

Wish you success!