have a life. also, relationships are very important. it can be hard to juggle the hsc around them, but its really helpful to have one. for example my boyfriend helped me keep it all in perspective, one of the few people all year who did that for me.
cramming does work if you hav neglected a subject, but try not to stay up too late. when your eyes close themselves its time for sleep, not more study. otherwise the cramming will have the bad effects of exam failure, lack of time management etc which is why we are warned against it as a feasible study method.
study notes are helpful, but like any other type of study, if u cant be stuffed then it wont happen. u hav to be motivated and the motivation seems to drain very quickly out of ppl around stuvac.
anyway to each their own. these are my tips but take them or leave them. im aiming at an 80 something uai, but if u want a higher one, probably a good idea to talk to someone who got a higher one