How about doing four workbooks at the same time in the compulsory course of high school mathematics? It takes time, but you learn a lot. What do people do?
Self-study It is very important to have a required knowledge. There are two or three reference books for normal schooling in our school alone. Do you think your progress depends on the school? If so, three books should be ok. Of course, not too single or too difficult to analyze? Questions (such as 53), pure exercise questions, and questions with significant analysis ratio (homework help, etc.). ) I chose it myself. Compulsory one involves many basic functions, the most important thing is to distinguish clearly and remember its nature, and then it will be combined with some knowledge tests. It is not recommended to make only one book (if you are smart enough, that's fine). The above two books are for beginners, so consolidate them once.