What you have learned is not good enough. It seems possible, but it can't be done in practice. I don't know if you have any books similar to counseling books. If you have them, put them away quickly. That will make you dependent. When I was a freshman, I had a math reference book. If I have nothing to do, I will read it. If I can't, I'll look at the answer, which gives my poor students something to rely on. I still feel like I know everything. The first monthly exam made me fall, and I fell badly. Your situation is very similar to mine. Whatever the reason, the result is the same. Let me tell you something. Take out your own test paper and make a good analysis to see if some good basic questions are wrong. In this case, you should sum it up. You should preview before each class. You should make good use of the dozens of minutes in class, so that you don't have to review all day after class. Why can't you understand in class? Because you didn't preview before, this preview is very important. There are many subjects in senior one, and you may be at a loss, but you can't digest them without reviewing before class. So remember to preview before class. When previewing, don't preview all of them. Focus on it. Look at the exercises after class, and you can master the content of this lesson. Don't dwell on what you don't understand. Write it down and listen to it in class with questions. The effect will be good. Make sure this doesn't happen again.