Sucks doesn't it... Though I'm a 'revise 2/3 days before the exam' kinda guy and have always kept up my ~60% marks in exams. I know I could do better, but thats kinda all I want is a 2:1 and am more interested in my result:effort ratio. My gf on the other hand revises for weeks solid, and is aiming for the 80% marks. Her last exam had a load of questions no one was expecting, therefore she couldn't write anything like she usually does. She was more pissed off she spent all that tiem revising for nothing.