Possibly use resources like GCSEPod, York notes, quizlet, or YouTube videos (Dystopia Junkie was great for me) to essentially teach you the materials so you have some analysis already.
Maybe also brainstorm a few basic creative writing plots to use in the exam ( could search up some but don’t plagiarise, make it your own) that can be adapted to whatever. Ignore your teacher, she’s probably underpaid, overworked and it’s made her miserable. Just do your best to work on your weak points. After doing what I’ve said above, it would be beneficial for you to do some past papers and maybe ask another teacher or an older student to mark them so you can see what you’re struggling most at.
Hope that helps!