She actually is diligent and studious, inquisitive and hardworking. She enjoys learning. She is a student and in addition a messenger (friendly, social).
Presumably, you already are studying if you have a test coming up. Therefore, I would personally think she may indeed represent both you and work as a significator.
If you should be perhaps not learning before tests, yes, she actually is suggesting to do this.
We have a tendency to see her as good (for instance, an indicator of good news about something), except whenever she actually is depicted since sad into the artwork.