Hi @Lisa.Jok, A Possum clearly and not Ring Tailed because it has more signs of its partly carnivorous lifestyle, i.e. stronger canine and premolar teeth and a sagittal crest for better attachment of strong jaw muscles. Great photos for skull ID, thanks, except a side view can often be helpful also as well as the main ones you took from above and below, and sometimes even a view from the back of the skull.
Hi Baronia, thanks for your sighting. It looks like the location information you provided is incorrect. This can occur if the GPS sensor in your device was having a bad day. Please review and update the location of this record when you get a chance.... PLEASE CHECK ALL YOUR SIGHTINGS FROM THIS LOCATION FOR LOCATION ERRORS.
I agree with @DonFletcher - it sounds like a Brushtail Possum. Have a listen at https://wildambience.com/wildlife-sounds/common-brushtail-possum/?srsltid=AfmBOoqmM4d5Zb3Ve0K_dUXau_o-cap3CBHsUAWprxcybcxx3YPLhba7