For my revision I used to plan essays and then bullet point what I would say if it came up in the exam. So like for Macbeth, for the question 'How is corruption shown in Macbeth', I would have written like six or seven quotes, and then bullet pointed a couple of things about them, pulling them apart and analysing the use of structure and language in each. That way, you don't have to learn as many quotes, especially if they overlap with other essay titles. It got me an 8 in English lit, so definitely worth a try if you work best revising from lists or that sort of thing.