A Level Chemistry help!!

I’m doing well in biology and psychology, consistent A’s. But chemistry is the one subject I’m unable to do even remotely well at. I thought something would magically click in year 13 as others suggest, but no! Still getting C’s. Please help me 😓
I recognise for chemistry it’s not flashcards like in Biology and Psych. Thus I’m focused more on past papers. But still, no improvements. I did past paper questions (ppq) + chemrevise for thermodynamics and kinetics, still getting 50%.
Did all past papers from 2016 to 2023 for my threshold exams, got a D.
In case you’re wondering how I do the ppq, I do it under timed conditions, closed book, mark once all completed, then memorise the mark scheme.
Pleaseee help me 🙏 I’m aiming for a B for my actual a levels, my teacher thinks it’s a bit of a stretch.