Given the times in which you were online and regardless of this (I hope you don't have Covid), even if i'm sure it's not a very simple thing, if I were you I would move to the U.S.A.
IMHO Australia is by far better for day to day living than almost any other country and especially so USA. Saying that I like to state that we have whole stack of our own problem and main being following USA way too much.
And that "earthquake" was not even worth to mention comparing say to flood and bushfires. I have nephew in Newcastle and they did not notice it. Meanwhile in USA (as everywhere in the world for this merit) they somehow feel that living in Australia extremely dangerous and trying to prove it everywhere. And their ignorance (re Newcastle south of Sydney) obvious for everyone.
About British vs Septic. You are right. For now. And may be not so right when it came to Sydney. And I personally like Australia to be more British and less Septic.