In-service postgraduate courses in university of international business and economics are carefully selected by teachers, which are practical and keep pace with the development of the times. What you have learned can be applied to your work and will not be eliminated. In addition, I saw that you also said that foreign trade and economic cooperation has good teachers, because foreign trade and economic cooperation ensures that in-service graduate students are equipped with exactly the same teachers and recruit the same teachers, and ensures the teaching quality of in-service graduate courses.
You still have a misunderstanding, that is, you can take the Shen Shuo exam for on-the-job graduate students after three years of undergraduate study. It seems that you can only get a bachelor's degree certificate this year. It is suggested that one year after graduation, you can take part in the on-the-job postgraduate class next year.
Finally, I wish you success in getting your master's degree certificate.