Make sure u can answer any and every question. If u mega sweat, u take ur scaffold and practice writing answers to qs. Semi sweat is write essay plans for the qs. Not much sweat is just read over all the qs and mentally map out ur adaptation.Especially english how do U ace the HSC for it for trials legit just adapted wut I had.
In terms of English, you should revise all techniques, both literary and visual that you have encountered in both year 11 and year 12 (with more emphasis on those that you learned/used throughout year 12 of course). Once you are confident with those, you should attempt questions from the unseen texts section of past HSC exam papers (those that have no copyright issues) as well as trial papers in order to maintain/improve your analytical ability, and subsequently assess yourself by comparing your answers to sample answers and/or seeking feedback from your teacher.