Will you go to class?
Personally, I think it is enough to find a teacher's video online. I am sure I can find it on Baidu Cloud, which is the most time-saving and money-saving.
2. With which teacher?
Bian Xiao is Tang Jiafeng's teacher. It is said that both Zhang Yu and Tang Jiafeng are good teachers, but Bian Xiao has never listened to Zhang Yu's class. No matter which teacher you listen to, you must not change teachers halfway.
3. How did you learn it at first?
Just buy the handouts of advanced mathematics and linear algebra (probability theory), don't buy the whole book, follow the video and only watch the intensive reading part, because the intensive reading part contains all the contents to be tested.
4. How to do the real question?
Buy three sets of papers, the first set and the second set of special review, do it twice and do it all.
Summary: The above steps are step by step, and there are not many problems, so we should make the problems thorough. I wish everyone can be admitted to their favorite school.