This is exactly how I felt!
For someone who didn't study that much, I found it surprisingly easy, which I suppose will bring down my mark because I'm expecting a mark of between 75-80, and if everyone else does well, I'll be scaled down badly. Funfunfun. Oh well. At the end of the day, it's just a bunch of exams, and really, compared to everything else you have in your life, and what you're gonna have, the HSC is really nothing. There are so many more exciting and fascinating things in life, in one's future, and a whole year of our life is wasted away to what'll be a few numbers on a piece of paper when we get our results back.