VCAA usually does this thing where they reiterate one question poorly done the year before and one question from 3-4 years ago.
This year, my prediction will be that there’ll be a killer Geometry and Measurement question, as in 2015 (4 years ago), there was the infamous 50 cent question. If you’re doing this module, I’d highly recommend that you check that question out and have it and/or the relevant formula in your bound reference if you know you’ll mess it up.
In the data core module, make sure you read the questions carefully - they always have one to trip you up via the wording in Exam 1 (the multiple choice only exam). Also, I don’t know about this, but there’s a small chance that a reiteration of VCAA 2011 Exam 1 Q12 will reappear, however, that appeared in VCAA 2014 E1 Q12 and VCAA 2017 E1 Q16; if the pattern continues, it shouldn’t appear this year (instead, it should next year), but anything could happen. This type of question has so far always been notoriously poorly done, so yeah, would recommend looking at that one in particular.
Unfortunately I have no tips or tricks for the financial module, as it appeared after 2014 (my Year 12 year).
My best advice though is read the Examination Reports. These usually have a goldmine of advice that people always forget to use! I personally recommend reading the previous year’s one for your modules and skimming through the poorly answered questions of your modules (any with <40% of the state that got that question correct) for the past 4 years - this usually covers all bases.