Well break a leg you lot.
A Level exams weren't so bad when I did them over 2 years ago - I had to do a couple of resits myself. May as well make a mistake when it can be rectified, so you know how much harder you have to work.
I did Edexcel Psychology for my AS's, I could do the theories, I could do the dates and even argue between them, the thing I couldn't do very well was Research Methods. Oddly enough, for my dissertation this year I've been cracking up psychology books (I'm looking at how Anxiety Effects Stage Performance, for a Broadsheet based article) and it's a lot easier to understand in hindsight...it's also probably because I'm looking at it practically, rather than just as a text book thing.
What we did for our A Levels was make the 6th-form part of the library our social area, rather than the common room, it meant you could work and socialize. It worked to an extent...the extent where you weren't distracted.