Student88,
I've got friends who are NATS controllers and every single one of them has a University degree. I'm not saying you need a University degree, but if I have a big pile of applications on my desk and I need a reason to cut the numbers down, what chance do you think those with no qualifications have?
My high school friends who left school and education early on are doing nothing with their time. One of them works in a Spar earning £100 a week, one of them is a bus driver, one of them works in the local corner shop and another one works in a Call Centre arguing with customers all day.