Of course there is hope. The number two is the professional master's exam, so don't consider it. It is the most difficult to calculate one, usually one of science and engineering. Counting three is an economic test, which is a little simpler than counting one.

If you don't have a foundation, you can find some teaching videos online and learn from scratch. Generally, it can be finished in two months, and mathematics is better than most science and engineering students after learning, because most of them forget it in two or three years except freshman. .

Now prepare for the postgraduate entrance examination, there is plenty of time, come on. . Remember to start with the basics, basic elementary functions.