I also took an exam and gave up English for more than ten years. In fact, apart from open classes, I only watched a few videos about exams, including cloze, reading comprehension and writing. I watched them for a week, but I didn't brush a set of questions. I only wrote one sentence in English-Chinese translation and one sentence in my composition, because there was not enough time. Tell me my opinion, just use the experience of scholars. They must help themselves, which is a relative shortcut in all roads. Whether right or wrong is good or bad depends entirely on personal understanding. I don't know if you have any experience of questioning what the teacher said when you were studying. Obviously, everyone has it. But in the process of learning, you can also have your own understanding and sum up your own methods. As long as it can help you, it is a fact. If you don't have a better understanding, then stand on the shoulders of others (let alone giants) and get closer to the goal.