I agree with airborne_artist that you should consider going to University and going for the position again once you've got an education behind you.
I've been thinking long and hard about the OBS position, I don't know if I could do the job knowing that the guy to the right of me is doing the job I actually wanted to do - but then again it's still a fantastic role.
Best of luck with whatever you decide to do! I went to University and don't regret it.