Seems like you're doing way too much work bud
You should only write notes to the extent that you lay out any info you cannot memorise quickly/through a couple of repetitions, and work on learning that. I don't think having huge pages of notes is helpful in the slightest, but that's just my opinion anyway.
I think oral/group discussion study sessions (by learning/teaching syllabus dot points to one another in your own words, you force yourselves to learn as opposed to rewriting out a textbook) and also having quote/evidence lists for the humanities, is the best way to study for the HSC.