There are not many classes. Generally, there are more classes in the first semester, which is similar to that in the first semester of college, and there are few classes in the second semester.
I don't think you need to be confused at all. If you need to take exams just because there are few courses and then take a part-time job, what is the purpose of your postgraduate entrance examination?
If there are good job opportunities, it is a good choice to work first and then go to graduate school, which will be more targeted when your knowledge can't meet the job needs.