Hiya! For reference I got 9A*A*A*A*AAAA at GCSE, my biggest tip would be to base revision off the specifications, ie. the questions will largely be based off the wording from the spec. So for example in GCSE RE (I achieved full UMS with little revision...) , the specification stated that students should know the different forms of euthanasia, and in the exam that was asked. So, base your notes off what the specification says. Not sure if this helps...