It really helps to have had a lot of different experiences and jobs. If all you know is being a student, then you are at a disadvantage as a counselor. It's real helpful to use your own job experiences in helping clients. Sometimes clients sabotage themselves unknowingly by going into a job they are not familiar with. If you can help, that's great.
School does certain things well, but there's more learning to do.
You have to leave yourself open to learning, and also realizing there are not always answers. You also have to be willing to ask for help and acknowledge you don't know everything. A lot of people think that you sit in a room, like the counseling center experience you might have had in graduate school, and work on affect and adjustment issues. A VR counselor works with folks who have significant disability related problems and often severe housing or financial problems. It's way beyond what the books lead you to believe for a rational and predictable profession.