Adelaide is a real tough scene to break into for clubs. The issue is that most places only play top 40 unless your really willing to scout around. If you're underage, I'm assuming your still in school, play house parties, get all your friends interested in you. If you have a willing fanbase, that gives you an advantage in the fact that you can bring to gigs.
There are also numerous DJ comps, like the one the Crown and Sceptre is having at the moment.
http://www.facebook.com/events/243563729071501/
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