I'm with you there Jade. It's all a matter of memory, which I don't have much off! I found though that if I revise, make key points and highlight the key words....and repeatedly revise this smaller list, something sticks in my memory. I don't know if that would help you at all
Nothing is sticking in and I need to have quite detailed info as I have long answer questions and I really don't know what is most likely to come up, getting so wound up going to fail