One thing that works for me with bio and math std is to do it EVERY SINGLE DAY. whether I'd be doing a few HSC questions for math and bio. if your school gives you a timetable of when you have exams/assignments, try and study accordingly.
Say you've got a math exam in week 6 (or you know its in...
I wouldn't bother retyping notes (complete waste of time). The best way to study is doing practice questions. when your learning content have your notes in front of you and don't do them in timed conditions (as of now). On the NESA website they have HSC questions by each module and I highly...