Hi Karina
I'm pretty sure you would be considered a mature age student now as you have been out of the system so to speak for 6 years or so. Which means you can do a STAT test (in South Australia, not sure what the other states call their version), the results of the STAT test will be what the Uni/SATAC ( in SA) use to work out whether you are granted a place or not.
Good luck with everything, I really hope you get in