don't fret
hey there,
after reading through all the advice kindly given to you, i think u got it all, well at least everything i would suggest.
my only comment is to remember to keep your head on tight. obviously you are aiming very high, but you have to remember to keep sane, do the thing you enjoy, spend time with you friends, go out on the weekends, keep healthy etc, or the HSC will ruin you. and i'm not being dramatic!! I think this is one of the most important things i learnt, and this helped a lot, as it kept me calm, and avoided me taking on a mass amount of stress which therefore keeps your memory in line, if you stress out too much, u are more than likely to forget everything. So good luck, you can only do the best you can, keep sane, happy and having fun. Year 12 can be the best year of your life..enjoy!!!!!