Mathematics review is to do problems repeatedly, and it is unrealistic to make great progress in a little time. This is true for high school students who work hard day and night, and so are you and me who have been in the college entrance examination for many years.

Calm down and leave some time for math, and there will be progress.

I suggest you get the high school textbooks first. The definitions of all theorems and formulas are generally impressive. The second step is to start doing problems, starting with basic problems, such as after-school exercises in textbooks. Finally, to do some real questions, it is best to buy exercise books with detailed explanations. You can buy these exercise books in any bookstore next to high school. Remember to buy real questions and ask the salesman which explanation is detailed, and he will give you a good choice. Don't use too much, make ten sets carefully.

If you want to get very good grades in the exam, it's good to buy some "exam research", a booklet with only a few dollars. The topic is relatively novel, keeping up with the rhythm of the college entrance examination, and the difficulty is not low. Unless you want to upgrade to above 100, it may not mean much to you.