Unfortunately Barney the typical Aussie lager is a very difficult beer to brew well at home, and the big breweries are very good at doing what they do. There are Coopers draught and lager kits and similar but if you want to get close, you won't be able to with kits. You'll need to venture into all grain, which is not something for the inexperienced.
If you want to get the Carlton 'twang' the two things you could do is use a yeast like Wyeast 2042 and follow a fermentation schedule (which requires a fridge with a temp control) and add Pride of Ringwood hops to the kit. Not super advanced, but not straightforward and no doubt hard for a beginner.
I suggest you start simple with a quality lager kit, steep some PoR hops and add it when you add your yeast, and use brew enhancer 1. Not Carlton draught, but a start to a great hobby that allows you to focus on the beer making process.
Keep everything clean and sanitise.
Maintain good temps (18°C) during the ferment
Take gravity readings
Be patient