From my experiences the best remedy for burning out is taking a day or two off from your studies and doing something that you want to do
after the HSC has finished. Being burnt out is really just a mental thing and can be fixed up by taking a break and putting things into perspective. Think of things objectively and continually take into account why you are studying so hard in the first place. That being, to get into your dream course in University and enjoy the 4 month post-HSC break without worrying.
I suggest thinking of the HSC like an investment, you need to invest the you of now to become who you want to be in the future. If you put your foot down and study hard now, you can be satisfied with your results
(and thus prospects for University) once everything is over. If you are half the person that you think you are take the first step towards getting back on track, and everything else will follow.
As a bit of a personal example, I remember being way behind on my studies only a week before my Trial HSC exams. In order to do well, i devised a study timetable in which i would do ~13-14 hours of study each day. After completing my trial exams i was
"burnt out" and lacked motivation to do anything, so i decided to take a week long break in which i marathoned breaking bad
(a show that i promised i would only watch after the HSC had concluded). After that week i put things into perspective and took the first step towards getting back on track, studying hard until my HSC exams concluded. Fast forward 9 months and i got into my dream course and achieved an ATAR far above my expectations.
TL;DR
- Take a break
- Study hard
- Think of the future
- Take the first step and don't look back