Flashcards for me have never worked, but it's whatever you find best fit for you! Like for me blurting is the best revision method i find for me, because your writing everything you remember without any prompts or notes other than the name of the topic/subtopic your focusing on. And then when you've written everything you remember you refer back to your notes and add things you've missed in another pen colour to see the parts you've need to focus on that you struggle to remember.
Practice questions are also good, planning them without looking at your notes and then looking at the mark scheme seeing if you got your answer write - you could blurt about the question and use that as a sort of prompt?
I hope this helps, good luck on your exams!! (: