1. According to the fact that you don't attend remedial classes, my review experience is that you are still a junior, so I downloaded some videos online first, with no specific purpose, mainly to help you understand what postgraduate entrance examination is. Test what? How to take the exam? That is, basic common sense understanding. Of course, there are also videos that experts explain the review methods of a course (English and mathematics are the most).
2. In fact, as a junior, the most important thing now is to ensure that the basic courses can pass normally, and focus on English, so we must prepare graduate English at the level of passing CET-6. As for mathematics, first of all, it is necessary to determine whether the management major you apply for takes mathematics, such as enterprise management, management science and engineering. But administration, library and information science don't need to take the math test. If you are sure that your major needs to take a math test, you should also take time to review math from now on.
3. Since you are applying for an interdisciplinary examination, it is very necessary to be familiar with the teaching materials in advance. On the one hand, it helps you to know in advance whether your future major choice is what you really like, and it also helps you to know in advance the review difficulty of professional courses. But don't worry, with your professional background in economics, it's basically no problem to take management, mathematics and professional courses.
4. As for whether it is necessary to register for the postgraduate remedial class. My understanding is that you really don't expect him to give you many opportunities for exams. There were two main points in attending remedial classes in those years: one was to put pressure on yourself. When you watch so many people approach the venue of the remedial class with you every day, you are too nervous to slack off every day, and you will take spending money seriously; Second, the teachers in the remedial classes are experts in teaching and research for many years. They will teach you some good methods more or less, so that you can avoid detours.
Finally, in fact, the postgraduate entrance examination is a very rare experience process of mental work, which will be unforgettable for life! Give yourself a place in the last battle! You will be more diligent! Good luck! Come on!