I know you write things in the HSC and writing things out physically and all that whatnot, but i use a phone app to write my notes. Its called quizlet and its quite good. it allows you to write in your definitions and things, and theres multiple ways to learn with it (definition first, text first, mix and match) etc, you can have multiple sets for different topics, and it also has a feature where it reads out your word (in different languages too!). Im sure there are hundreds of other flashcard apps, you just gotta find the one right for you.
I find this good because it literally takes NO SPACE. A whole bunch of flashcards for different subjects take alot of space - dependig on your hadnwriting and size of card, and the number of subjects. Also if you lose a card, or drop them and they go everywhere, AHH the hustle!!!
With a phone, they're all nice and easy to use also easy to pop out on a bus or train without having the awful chance of dropping them everywhere.
tl;dr - use a phone app for flashcards is my suggestion
ahh reading this thread is making me a bit sad and not excited for next year ;_; is it possible to have fun in year 12???
and good luck to all of you for your exams!!!!