Moving up by 2 grades between AS and A Level.Watch
Long story short: I got a grade D in my Maths AS level and by A level achieved a (comfortable) B.
Advice I would give to anyone who wants to improve their AS grade by A2-
.Review what you did right and was helpful, and what you did wrong in revision, then do more of the right thing and correct the wrong.
.Spend more time with those good at your subject, ask them for advice and help with studying.
.Spend time with people who genuinely care about achieving. Those who don't won't encourage you.
Even teachers told me I was more likely to drop 1 grade down than imrpove by 1 but improving your AS grade is actually very possible
Any questions or more advice can be shared here