Firstly, it's really important to have a good level of familarity with the text, as this can help you choose what to write about in the exam. Make sure you have read the full text at least twice - preferably more! You can then continue by identifying the key themes of the text - this could be things like love, death, old age versus youth, etc. Making lists of key scenes and key quotes that support each of themes is a good way to revise without just writing essays. This can be done for characters too - you can list all the characters and then specify quotes and scenes that tell you about them. As the exam is closed book, it is important to learn quotes. After having listed key quotes and characters, you can use a website called Quizlet to learn them. The website allows you to test yourself on the quotes - you can set it so that it will tell you the first half of the quote and you have to complete it. This website is very useful for revising for any subject! Past essay questions for the exam are generally available on your exam board's website, and it can be very useful to plan essays for these questions. Rather than writing a whole essay, you can just brainstorm points and quotes to explore. That said, it is also helpful to do a couple of timed essays before the exam. Good luck!