Good luck, as everyone else has said (Napoleon once said he'd rather have a lucky general than a good one!), but I don't know if you'll need it. The figures sound daunting, but you'd be surprised how many not-very-suitable candidates apply for these sort of things; just try to stay positive and show them how intelligent, hardworking and gifted you are, and I'm sure the obvious enthusiasm for the subject that comes through whenever you mention it will shine through. :)