Choosing a training class should be compared in many aspects. Compare teachers, services, review materials and other related aspects. If you are engaged in this kind of work, then relatively speaking, you have a certain foundation and it is relatively easy to learn. If you are not in the industry, you need to report to class and study hard. After all, knowing the theory can better combine practice. I have been engaged in human resources for three years, and my undergraduate major is also human resources. By the time I graduated, I had passed Level 3, and the certificate of Level 2 was about to be issued. However, the training class will invite some theoretical teachers and teachers with practical work experience to combine the two to better absorb and accommodate knowledge. I was trained in Chongqing University Vocational Training School, and the overall feeling is not bad, because everyone has different views. Of course, you should take some time to review your book knowledge, do more real questions and summarize more, in order to study better. This is just my little suggestion, I hope it will help you to some extent.