once you are old enough, get a "Responsible Service of Alcohol" (RSA) and also a RCG certificate and get a job serving beers in your off time. No matter WHEREABOUTS in Oz you end up, bartending experience will e beneficial to you.
Re the Resume, i doubt that you have one (not being nasty), so just turn up to the local operator and ask him/her straight up if he/she will take you on on a casual / part-time basis. Explain what you want and why you wnat it. they will either get rid of you straight away, or be helpful.... generally there will be no in-between.
either way, good luck with that first solo.