It is Christmas Eve where I am for the holidays and in celebration I was going to write up a long post on MS, explaining how it is a way of thinking rather than a particular method, but then I came across this absolutely amazing interview with one of the leading bloggers in the space that pretty much covers everything I was going to say.
It is the episode 'Credit Card Arbitrage' on the Risk of Ruin podcast. If you are at all interested in exploring MS, you absolutely need to listen to it. Probably thrice.
Some resources that will be well worth your time if you decide to explore this rabbit hole:
Doctorofcredit
Milesearnandburn (the interviewee's website)
Reddit's churning subreddit
Frequentmiler (they have a 'complete guide' to MS that lays out some basic ideas)
Flyertalk's MS forum
Finally, although it is mentioned in the podcast episode, I will underscore the importance of understanding the risks of anything you do. There is the possibility of having funds frozen (for long periods of time) and even lost with some forms of MS, so never float more than you can afford to lose. Take it slow and ramp up anything one step at a time. It also takes a long time and a lot of reading to work out what can and cannot be done from Australia, so you need to be patient and persistent. I've encountered a lot of dead ends.
Merry Christmas!