Simps, some people are in your situation mostly because they don't cope well under pressure and conversely, cope well in relaxed environments. If you were given two questions (ok im going for a maths one here) with diferent numbers, you'd probably do the one in class, but not in exam. You just got to calm down in exam conditions and dont get so stressed. Ill be honest, i found that by bending the rules a little helps break the strict exam tension and helps me focus more. Im not talking about cheating, just say something casual to a friend as you walking in, sitting down before everyone else has. I also found out today (officially) that thermodynamics is SHIT. Its all very well kids saying they dont revise for their GCSE's and SAT's ...lol... neither did I. Infact in school I only revised maths A-level for 20 minutes.... lol