2): If you don't want to try the first method, you can also use a smarter method: look and read. There are many small knowledge points in history books, which the teacher may not emphasize, but may be tested. When reading history books, the teacher must look at the key points drawn and take the time to write them down. There are also some humble little knowledge points, such as small links, classical Chinese and so on. I have to take a good look for myself. Because the small link is probably in the last question of the exam: the expansion question and the promotion question. This is also the best way to prove yourself. If you get this score, the teacher will be impressed.
3): I think you can refer to this point appropriately: read relevant materials. Anyway, it is winter vacation. You can usually write down some extracurricular history books as a pastime, which may be useless, but in history class, the teacher may ask questions, which is also one of your winning ways.
Winners win by scores, and paying attention to details that others don't pay attention to will make you more confident of winning!