First of all, you know what you don't pay attention to in the administrative unit. It's inconvenient to say more on the Internet. What you need is to improve your academic qualifications. If you are an undergraduate, you should study for on-the-job graduate students, related majors or administrative management. If you are a graduate student, you should study for the second master's degree.
Secondly, what you need is to highlight your advantages in this job, that is, the relevant documents you mentioned are not many, but famous.
Finally, the administrative unit work, not to see how you work, but to be able to write, if you want to be promoted, you must have a strong pen!