I'm currently in the happy position of having just completely messed up two A-Level Chemistry papers. Fortunately, Chemistry isn't particularly critical for me, so I can afford to get a B, but it would be nice not to.
On the other hand, my Maths papers have been going well so far. The beginning of next week is going to be traumatic though: Physics synoptic paper on Monday afternoon, Chemistry synoptic on Tuesday morning and Pure Maths 4 and 5 on Tuesday afternoon. I'm not looking forward to that little lot at all.