Do you have a revision kit that offers you lots of question practice?
Question practice is essential.
If you have been using a kit eg Kaplan then by now you probably remember the questions and answers, so it’s time to get a different one.
Don’t mark your answers in the book. Write answers on a separate sheet so that the book is kept fresh for you to have repeat attempts. When you get a question wrong really try to understand why you got it wrong. Eg did you lack knowledge or was your reasoning faulty.