I will also be revising chemistry, whilst submitting an appeal just in case my grade doesn't change by as much as I need it to. I will be starting tomorrow and working through my subject unit to unit. I will not be re-writing notes (as I don't have time) just reading over them and practising examples and answering questions. Try not to stress to much about it all and think of a plan of action that will work for you, i.e. how best you revise. Good luck!