Has anyone applied to the University of Sydney or UNSW? or any universities in Australia in general?
First check out the costs involved, as a foreign student living in a country with a very high cost of living (Sydney is very expensive and immigration requires you to have 18K$ just to land, let alone tuition rates for internationals). Education is a product sold to internationals so you need to shop wisely for a suitable school and usable major. Sydney is globally fairly highly ranked so you would be competing with Aussies and high stats Asians.