I’m in the same boat, but I do Hinduism. I literally just revise the backbone of my essays! I have my ethics mock coming up, so at least I’d have already learnt all of Ethics. For Hinduism, I just learn quotes and content, I make them up in the exam- it worked well for me last year though. So, pretty much doing the same. If you count how many essays you have to learn- I recommend 2 a day for however many days you have to learn them before the exam, and then a couple days spare to go over them. Hope this helps!!