Sean,
I went 4 years ago (when they had a kitchen and a Bernadette!), but:
"How much study should i be doing?" - If you've done none before (as I did) the answer is 'a lot'. You've got 7 written exams to pass, so you will be either studying or flying the whole day. There's also 4 'night-school' lectures. Plans to take the relevant exams as soon as possible after the relevant lecture. But basically, the harder you work in week one/two, the easier week three is.
Re food and drink - there are a couple of expeditions a week to the local Wal-Mart. Stock up there (dirt cheap compared to UK/Ireland). Get one of the older blokes to grap a six-pack or two for you. You are however old enough to buy a rifle there, should you want one!
Best bit of advice is this - When you get there, you'll find other students getting to the end of their course, others like you at the start. By far the best way of working out what the SP is, is to talk to them.