^^I dont do SOR, but you should just be skimming over everything making sure you know it, past paper questions if possible.
Maybe instead of studying the night before your exam you should have an effective study time table? I take it that your exams were today... I will put up notes that I've done up in prep for my SOR II later on... But you should've studied whatever you've done in class? For myself that was Post 1945 and two depth studies... And of course past exam papers would be very useful.most important things to study nite b4 exam?