Hey, I'm taking Higher English and business this year and I'm predicted A's, so maybe I can help.
For business I've been making flashcards after we finish each sub-unit, and then I read over them in the lead up to a test. If I'm tight for time to revise then just doing that can get me a good grade, but doing past paper questions if you've got time is ideal. Sometimes I make mind maps for topics, but I only tend to use this as a relaxed form of revision.
English has a bit more to it though. For SST I first recommend you've got the structure down.
"Quote..." - Technique. The word(s) _ have connotations of.... This suggests [link back to the question].
E.g., "prolonged and sordid negligence" - Word choice. The word "negligence" has connotations of abandonment and disregard, whilst "prolonged and sordid" suggest that this was horrible and long-lasting. This shows that the back entrance to Dr Jekyll's home has been abandoned, left to rot and decay, which helps create an unsettling atmosphere.
That would get you a mark (and you probably wouldn't need to write quite as much as that).
In terms of revising for your SST and critical essay, I think how you do it depends on the type of text you're studying (other than doing past paper questions).
For poetry and short prose texts, I think that flashcards with a quote and analysis will do the job.
For a longer prose text, drama, or film I recommend creating revision booklets on Google Docs and printing them off (explained below).
For my SST (Jekyll and Hyde - longer prose text), I have different tables for most if not all of the possible 10 marker focuses (e.g., evil in humanity, duality, ect). For each of these tables I have at least 7 different quotes + their analysis from 7 different chapters. I read this sheet like flashcards.
For my critical essay text (a film called 'Fargo'), I'm doing something really similar. For each possible angle I could answer a question, I'm creating revision booklets (one for each of the main characters, one for setting, ect). For example, in the one I've made for the character Marge I've done evidence and analysis from the point of view of her being heroic, breaking stereotypes, and behaving unexpectedly because that's what I could write an essay on Marge on. I also wrote a general introduction and conclusion for Marge essays that I could adapt based on the specific question.
If you would like any more advice, feel free to ask me. I'll be more than happy to help! 😊