VR: I would suggest improving vocab. Lots of reading ,maybe cross words and puzzles.
VR and NVR. Start the papers now and go over the mistakes . I would do 2 papers a week in both NVR and VR and then gradually speed up (ensure you complete papers in time and then try to finsh with a few minutes to spare).
Try a variety of NVR and VR exam papers -they are different.
My sister started with a paper yesterday and yes vocabulary is something she definitely needs to work on so thanks for the advice
We have a few different types of papers at the moment (which cover the correct types) but we will be buying more.