Then I can only say that there is no shortcut to learning mathematics, which requires you to invest a lot of time and energy, and she needs your understanding.

This is a subject with strong logical thinking. If you learn well, you can draw inferences from others, and the same type of problems can be easily solved.

But in the process of learning, you first need to master the key knowledge points that the teacher talks about in class, because these are the principles or breakthroughs that will be applied to solving problems in the future. Of course, if you feel that you can't fully grasp the knowledge points only in class, I hope you can preview and consolidate before class and review after class.

Since you think she is difficult, I think your course may be weak, so you should spend enough time doing some proper synchronous exercises. Of course, if someone can coach you around, it will get twice the result with half the effort.

With the plan to strengthen your study, the last step is also the most difficult, because you find it difficult, but you must persist, and actions speak louder than words. No matter how good the study is, if you don't persist for a long time, you can only end up without results.

She is difficult, but you are as good as others. We don't ask ourselves to be top notch. If we really don't have enough ability in this field, then we can learn the level of a good book.