You might want to look over some of the 4u stuff such as integration by parts and complex numbers cause those are pretty essential and they sort of grant you a small headstart
Time flows slower in places with very strong gravitational attraction according to Einstein's theory of general relativity. Theres a lot of things slowing time down can achieve.
Gets 99.95 atar but doesnt do umat: goes into any uni you want but no med related field
Gets great umat but medium atar: limits amount of uni opportunities and still cant get into med.
Weigh up the advantages/disadvantages