Year 12s: what will be the first way you research your future options? >>

Can I enrol at two colleges...

Hi all, this is rather urgent as my first appointment is a day and a half, but is it possible to enrol at two colleges. My reasoning is my second choice college enrolment is three days before my first choice and I worry that I’d I turn down my place at my second choice then get rejected from my first ( I have the entry requirements of 5 passes but the grades aren’t as high as i put on my application) I’ll be stuck with no college to go to...
Can I accept my second choice offer then cancel after my first choice is confirmed.. help!!