Once you have finished school you are no longer a student and you should be eligible for a Low Income Health Care Card.
This card gives access to a range of concessions, not only on some health care items but also on a range of other goods and services. In particular TAFE and other short courses offer substantial discounts for cardholders.
You may also be eligible for public transport concessions (note that if you are studying interstate you are not eligible for public transport concessions in Victoria).
Eligibility for a Low Income Health Care Card is based on YOUR income over the previous 8 weeks. As long as your income is less than $4248 over that period you should qualify. You will maintain the Low Income Health Care Card as long as your income does not exceed $5310 in any 8 week period.
To apply complete the form (link below) and apply through CentreLink. I suggest you do this once your exams are over.
Here is a link to the LIHCC section of the CentreLink website: