A Level Religious Studies OCR

I do A level religious studies (OCR exam board) and i am SERIOUSLY behind. i absolutely FAILED my mock and don’t know ANY of the content, let alone revision, and I want to be able to catch up with the content and memorise it as efficiently and as quickly as possible, which does sound pretty impossible. I struggle mostly with paper 2 ethics- is there any way I can somehow learn the content and memorise it??