I'm also a braggart major. Your English should be an advantage. Advanced mathematics has little to do with high school. Generally, I will bring three books, advanced mathematics, linear algebra and probability theory, and mathematical statistics. Which school do you want to enter, and where do you want to enter? Tongji University has a high volume of books.

I am now downloading videos on the Internet for self-study, and I am doing my postgraduate entrance examination over the years. There is a video of Cai Gaoting's advanced mathematics on the potato, which is very detailed, and there is linear algebra.

I suggest you sign up for a remedial class so that you won't be taught. If you have a good foundation, try to follow the class of the math department. If the foundation is poor, follow the class of tourism management department. Go to every class as much as possible, because math is difficult to understand as long as it takes a few days less. There is also the problem of doing more. Sometimes, even if I understand it, I won't meet it next time. Preview before class. After all, you are praising your major. You should work harder than others. Come on!