Secondly, you should work hard, make a plan by yourself, just have a general plan. You should read the book 1 twice before July at the latest. I'm not talking about treating it like a novel. You should think over the theorems in the book and make full use of the examples. The questions in the book, especially the examples, are classics, which can help you understand theorems and formulas. Don't memorize them by rote, if you want to learn mathematics.
Don't care too much about how much others have reviewed, don't be influenced by others, and finish your plan in a down-to-earth manner. As long as you persist every day, no matter how heavy the task is, you can finish it.
Don't look at the answers to questions that you can't answer right away. This is taboo. You must not discuss with your classmates after repeated thinking, and finally you can't see the answer. After reading the answer, you will feel suddenly enlightened, but you should immediately reflect on why you didn't think of it at that time. Ask a few more times.
I don't advocate sea tactics. I hate this thing all my life. Of course it works, but it's inefficient and not worth it. Needless to say, you should learn to return to the "origin" for the questions that you can't do. The so-called birth is the textbook. You have to know that this is something that people have to do no matter how hard it is. If others dare to do it, they can certainly do it with what is in the book. For example, if you don't do derivative tests, you can go back to reading or think for yourself. You must firmly believe that I must have forgotten which knowledge point to use. As long as you do this every time, it will definitely have an effect.
Don't act rashly when doing the problem. My consistent principle is that as long as the answer is wrong, I won't do it and get zero. I must be strict with myself. Of course, you can have your own standards. Be sure to wait until your calculation is exactly the same as the standard answer.
Finally, I want to say that the improvement of mathematics is not overnight, and it is as expensive as English. Don't shake your confidence, believe in yourself and pay attention to the solid foundation (textbook). It can't be unresolved.