Condense your notes into flowcharts. So, e.g. appreciation of AUD -> X worth more and M worth less -> ST improvement in BOGS -> ST improvement in CA, etc.
The content can be broadly summarised under global differences, free trade, protection, BOP, exchange rate, growth, unemployment, inflation, distribution of income, enviro, external stability, and macro and micro. Knowing both the flow charts and some statistics for just the above will score you 80%+ of your marks.
Statistics wise, you're good to go with gpp growth, inflation, unemployment, labour utilisation, CA, foreign debt. Basically, anything you'll ever need is in the RBA snapshot. A quick reminder that stats is just the icing on the cake. If you've got a tasty cake and no icing, it'd still be a tasty cake. No amount of icing will ever make a crap cake tasty. Lol.