There have been squillions of similar posts and very helpful replies previously posted. Use the search facility at the bottom of the page to look them up.
Other than that, I'm afraid I can't help you 'cos NATS told me I didn't have
to become an ATCO.
That was 11 years ago, and 10 years ago I validated in all positions at my first unit. Four ATC units on and I'm still an atco
Very best of luck anyway....
