Hi!
Okay, so, about writing/memorising essays. What works for me is that I always make some notes / analyses for my texts and then proceed to write an essay on a past question. Most modules have similar questions (except maybe my option for module b) and therefore my essay can be adapted to a new question sufficiently. I do 'memorise' my english essays or at least my very strong sentences because for me personally it works, and then I change them during the exam.
I tend to memorise my essays paragraph by paragraph, not the whole thing. It's much easier and more organised. And by doing this you technically just memorise your key ideas with an explanation. Another trick of mine: I stick post it notes with the topic sentence of each paragraph on a page (total of 4-5 paragraphs) and that triggers my brain into remembering my key points for each pararaph.
What I usually do is I write a very general introduction with a very strong yet broad thesis, then address the question in every of my paragraphs. I try to keep my points of discussion as broad and relevant as possible so I could take out / add things during the exam. This prevents you from writing a very specific essay that doesn't ultimately answer the question.
My options are:
Discovery - Frank Hurley + my related text (i find this topic is the easiest to have a generalised essay for). Memorised my essay / key paragraph ; 14/15 in assessment + half yearly
Mod A: Richard III/ Looking for Richard ; comparative study; can be a bit tricky but if you know BOTH the texts very well it won't be as hard. Memorised my essay; got 18/20 in half yearly.
Mod B: Poetry of WB Yeats ; this is the hardest of the modules for me and I haven't written an essay for it yet because the question can ask ANYTHING AND SPECIFY A POEM which makes it challenging. And it isn't possible to memorise essays using combos of different poems ; so my plan for this is to write a general paragraph for each poem, analyse its techniques, memorise a few quotes, and go from there. (we did a speech for this so I haven't written an essay under exam conditions for this one or the next one yet)
Mod c: Brave New World + related text - my favourite module because I love politics and I can write alot about it. This module is about representation so my essay will be centered around that to a very high extent. I will most likely 'memorise' this essay.
Remember everyone learns differently! Good luck on your trials.