What else can I do to revise chemistry?

I started really early so I already have my revision notes, mindmaps and have done most of the past papers twice as well as 20 or so past papers from the old spec so I'm a bit stuck as to what to do next now.

Doing past papers again just makes me bored because I'm probably not even understanding what the question says but because I've done it before, I've probably just remembered the markscheme so I'm not learning anything. I've got 1 & a half full days to revise chemistry and I want to spend them really effectively. Should I do the 9 official AQA past papers a third time? What else do you recommend? I really want to get an A so anything would be helpful

thanks