Current AS student here (although I only have one AS exam left) - A levels aren't as scary as everyone makes them out to be. Yes, there is a jump from GCSE to A level, but remember this: if you get the grade requirements for your chosen subjects - or even if you don't get the grades you wanted because you had an off-day in an exam, but you otherwise show your sixth form/college that you could have reached the grade requirements - your have done well enough to take that subject to A level, so you are, by default, capable of overcoming that leap. If you just keep a level head (no pun intended), things will work out. Revise from day 4 (because the first few days will be 99% admin and recapping GCSE) - this makes it so much easier when it comes to exam season - but likewise, don't exhaust yourself - initially, three hours per subject per week should be more than sufficient, although you might find you need to do slightly more or slightly less depending on your personal learning style (but think of revision in topics not hours, because that feels a lot less daunting). Also, keep neat notes, and keep them organised - if that means completely re-writing your class notes and putting it in a nice ringbinder, then so be it, but that might not be necessary for your subjects. If you do all that - that is, keep calm, keep organised and work hard - very little can go wrong.