Before preparing notes, decide which all areas/subjects you need to make notes. Personally, I think only optional requires extensive note making. For prelims, mnemonics should be used instead of writing down gazillion factual points.
Coming to making notes, I'd suggest an easier method, which is copy paste😅 This 'advanced method' requires a pdf of the text and a note making app. Works better on lap; if it's a tablet, then multi-tab functionality is required. Now straight off copy paste relevant analytical aspects of the text. The resultant note would be a collection of sentences very awkward to read. Now read it, underline and then high light key words (in the note app). Now jot down these key words into a flash card (an app also is fine), and revise using the cards as a self quiz/revision tool😅
