The non enjoyment of education thing, I know what you mean tbh, I did college, hated it and didn't want to go to university. So I went into full time employment as an IT guy at an Accountancy Firm, man did I get annoyed with it fast! Stuck with the job for over a year however while I sorted out my uni stuff and now I'm at uni hating 1/4 of the course that I gotta do here!
My advice would that you should really try to find something that you enjoy, which in your case would be computing as it seems, go to college, try to get A levels in Computing / IT and some other subject/s you know you will enjoy and maybe after that join the army and go into something like telecomunications

?
Just an idea