You've made several mistakes already;
You've given too detailed a description of exactly where you are planning to play - i'm fairly sure that if i really wanted i could name the casino you're going to be playing at in under 5 minutes. If there is anyone from the Austrailian industry looking at this right now, they are now looking for you.
You've also decided that this is the only game you can possibly play. It's not - for a start, the casino you're discussing isn't the only casino you can play, you're just reluctant to travel. Admittedly you need to ensure you have enough opportunity to recomp travel expenses as well as a reasonable wage, but it is possible. That would extend your lifespan. Hitting the same casino again and again is just an invitation for a quick barring. As this is your only venue, no doubt you'll also play session that are too long. All this means that your fun will be over before it's really begun. Also - as has been pointed out to you - you're probably far better off playing pontoon. The change from playing one to the other isn't that dramatic, and i'm sure you could play that on the main floor reducing the attention you receive.
Not trying to be mean here - but if you're serious about making money, you have to learn from your mistakes quickly.
RJT.