Im in y12 for reference
Firstly, your mock grades look incredible! Clearly,your revision techniques are working since your grades are top notch.
Attaining grade 9's shouldnt be an issue for you, as you're only 1 or 2 grades away from 9's in most subjects.
Little story, i was getting 6's and 7's in my y11 mocks, but in the actual gcse's i got an 8 (which isnt a 9, but still shows you can defiantly jump up grades!)
My advice would be to continue the revision techniques your using, and draw up a revision timetable. I found that helped me plan out what hours i was going to dedicate for what subject. Take time to look at your GCSE exam timetable and plan accordingly. Make sure you ahe a dedicated study space that nice and clean, and snack when studying will bring motivation up!
please please please dont forget to do lots of past papers, i regret not using past papers to their full extent. Take time to study the mark scheme, that way you'll know exactly where the examiners are picking marks up (e.g specific vocab)
Asking teachers for help, attend any after school sessions. You can find amazing videos on yt which give a detailed summary of all topics on certain papers e.g bio paper 1. Dont force yourself to revise, and if you ever lose motivation, just imagine how thankful your future self will be
If you need anything else let me know ~