Best way to revise for a speaking exam?

I'm doing French higher for one of my GCSEs and there's way too many answers so are there any better ways to memorise them other than saying them over and over again? I'd be grateful for any tips or advice

I do German, and something that helps would be learning a wide range of vocabulary!
I do this by listening to German rock music and having a German friend by my side listening to my (definitely not pathetic) German - trying to hold a conversation with her in the language + her correcting me when I'm wrong.
I wish you all the best!