HELLOO
(my subjects are phys chem maths + advanced)
For physics and chemistry, on the day we learn content in class, I go home and spend about an hour each to make notes for the 2/3 mini-dotpoints that we have gone through, this is ESPECIALLY useful approaching exams .. often many of my friends are rushing and making notes a few weeks before, leaving them little time to actually do past papers
I find typing notes as the most efficient way to make notes - i like having extensive notes (my physics for first 3 modules are 30,000 in total rip) because it just gives me the security of having covered every possible nook and cranny (even tho i like dont remember a lot of it lol)
I also remake mini-notes on google doc when doing past papers - i have a list of silly mistakes that I frequently make, as well as reminders of things and things exam questions often trip up students on e.g. ( - question is asking for volume of water
ADDED'!!!!!!!!!!!!!!! not just the full volume after dilution!!!!!). I also re-type up content that I am not that familiar with in a summarised version in these notes as well as scaffold answers to extended response questions, combining solutions from many sources to familiarise myself with what teachers/nesa/bostes require for full marks
if you are approaching your exams and have not completed your notes, i suggest that you make notes WHILST doing past papers - a common mistake amongst students that I see and have heard teachers talking about, is that they are often paranoid with completing notes first to ensure they've covered EVERY dotpoint prior to actually applying all that knowledge. often when you make notes - yes you do retain some info, but the real deal in science exams is knowing how to actually answer the question and presenting every detail required.. you need practice for that!
For maths, I handwrite my notes as I go, so approaching yearly. for each topic, i write a summary of definitions, write steps on how to approach specific types of questions, followed up with difficult questions that had interesting tricks or were ones that I couldn't do just to remind me through the year
and english is just a lost cause lol
that being said, it really really really depends on who you are!
the dux at our school doesn't really make syllabus notes for their subjects and does amazingly at every exam HAHA they just do lots and lots of practice, but they also make sure that they completely understand something before moving on. a lot of students like me usually go 'oh i'll look at it at home later and try to understand it then'.
hope this helped!