I don't think it's difficult. In order to find a good reference book, I suggest Li Yongle review the whole book. Review is to pay attention to basic knowledge. You should read this review book several times, preferably three times. In addition, read through the examples and exercises in the book. I believe I will do well in the exam. I just finished the postgraduate exam and have a poor foundation in mathematics. Besides, our major is the first, but after reviewing in this way, I got 1 15+. Quite unexpected.

A good plan, plus patience and perseverance, I believe it can be done.