Hello @bug_seeker glad to know that you are doing something different from the normal student starting his/her career.
Let me tell you what is exactly the work of a Linux Admin.
A Linux administrator is charged with a lot of responsibility, as they must provide support for both the Linux servers and the applications and services that run on these servers. As such, there are a plethora of tasks that you will encounter throughout a typical day. One of the most common problems that Linux administrators must deal with is troubleshooting server issues. Not only will it be up to you to ascertain the problem as quickly as possible, you will then need to implement fixes in a timely and efficient manner. Unlike other tech or IT jobs, there are many times that a Linux administrator will have to do this task independently and without much, if any, supervision.
But trust me when you finally get your hands comfortable with all these task then you will be good to go!
I guess you must give it a try by building a test case, try breaking it and try building it again. This would give you a brief on how will your life will be once you start your career.