Mathematics is divided into small questions and big questions. Find out your weaknesses first. If it is a small problem, it is suggested to buy some reference books specifically for small problems, such as "Crazy Training for Small Problems" and "Crazy Doing Small Problems", and practice more, preferably within a limited time. If it is a big problem, it depends on whether the steps of solving the problem are incomplete or not. The former "imitates" according to the relatively standard problem-solving steps, while the latter finds out its own weak points and practices and does more, instead of doing more problems. If you can't do the problem, do it yourself after reading the answer, and do it repeatedly in a few days until you can do it yourself without reading the answer at all.

If you speak English, you should also practice more. English includes listening, single choice, gestalt, reading, Jiangsu and task-based reading. Listening is also a lot of listening. If it is a single choice, distinguish between weak questions, attributive clauses or non-predicates, and so on. , and practice specially. Gestalt reading needs more practice. When the teacher explained, he felt bored and stopped listening. The teacher will analyze the methods and ideas of solving problems. It is recommended to buy 5+3 (five-year college entrance examination and three-year simulation), which has various questions and good questions, as well as the analysis of problem-solving ideas and the introduction of good problem-solving methods, as well as the induction of knowledge points. There is also to increase vocabulary, prepare a small notebook and write down the new words you encounter, not necessarily in the text, but also in gestalt reading. There is also reading more, reading the text, reciting the text, not necessarily reciting it, just reading it well, which can cultivate a sense of language and is of great help to single-choice, gestalt and task-based reading.

The above is my personal experience in studying in high school. Just graduated from high school this year. I hope it helps you.