You can get a myki pass irrelevant of what type of myki you have. You can't buy the high school ones that are pre-filled with money for a year, but you can still load a years-worth of money onto a myki pass. To memory, the last months travel is free, too. To do this, simply go to a machine, go to top-up your myki as usual, then push "myki pass" instead of "myki money". A teller at a premium station can help with this.
The only issue you'll find is that unless you have a Health Care Card, you don't qualify for a concession myki (welp, unless you're a 16 year old uni student.
), so you'll need to apply for a new VPT concession card. Your university will most likely have pre-filled out form available for you somewhere, in which case you just need to get that and hand into a premium station.