So basically this year i've been sitting on my ass instead of studying most of the time, got a couple of assessments back and turns out im sitting at just above average. Is it too late to secure a 96+ ATAR if I get my shit together?
Of course it's not too late. You've probably only done like 1-2 assessments for every subject (if even). Just make sure you own everything else and attain the highest internal ranking as possible.