You can get your provisional, and even your full, license at any time. You don't have to wait for the one year to be up! It just means that when that year is up and you haven't done anything, you'll be unable to drive.
I agree with Geeta - get started on it ASAP. My cousin (British born and raised) just failed her test for the third time. Not that I'm saying you will, but it's best to get started quickly just in case!
Maybe someone who has recently gone through the licensing process could write a 'Just Do It,' as this question seems to come up on a nearly weekly basis. It's been six years since I did it, so things may have changed since then, otherwise I'd do it.
Anyone?