I graduated last year, but hopefully these study hacks I used in university and HSC can compliment your studies too.
- If you're subject is context based, use ANKI; it's an active-recall platform that utilises different study methods to help someone learn/revise your notes. Helps reduce the paper version of flash cards, turns into a pigsty if you ask me!
- Don't waste your time making notes: This is a controversial take, but individuals have taken the HSC long enough for resources to either be free or can be bought with a couple of bucks so make the most out of those notes. If something doesn't make sense, learn to rewrite it in your own words and explanation. There's also tutoring, while I have never been tutored during the HSC, some people find it extremely helpful. But obviously, if you cannot afford to be tutored, there are tons of free resources for you to take advantage of. e.g. ACEHSC
- With your take on the syllabus, you'll definitely find somewhere where someone has broken it down or used the learning outcomes as subtitles to fit their notes based off that syllabus point. Otherwise, what worked for me was I broke down the learning outcomes and puzzled all the topics into it's allocated syllabus points. Reduces time and makes it easier!
- Another controversial take, if you don't have friends/people to describe a concept to, use AI: AI is inevitable to avoid these days, and is slowly being incorporated into our lives. Don't use it for academic misconduct but use it to your advantage. It's really helpful to create examination questions and for you to explain your reasonings and concepts. While it is not 100% accurate, it can help you with your findings and enhance your understanding. Obviously, don't rely on AI, use it for the greater good.
- Take it slow and enjoy your final years. Don't waste your time studying your heart out, those who got high ATAR marks had a balanced-lifestyle. Find a hobby that makes you move and think. This can be: Gym, Sudoku, Playing an instrument, Running, Walking. etc... most importantly hang out with your friends and make memories.
Best of luck.