Flyboy,
I have to agree with justwonnafly. I mean, mindfully not completing your education when there is plenty of time to do so is an unecessary risk.
Think about it like this. There is a chance you might get a decent flying job as opposed to you there is a good chance that you will.
Flying aside, at this stage of the planning, you need an exit strategy. Picture this, you have your £40,000 loan repayments to contend with and for some reason you are unable to fly (car crash injury, illness, whatever). WTF are you going to do now? No decent employer will touch you with a bargepole because you know nothing worth knowning and you have no track record. Now you cannot afford to take fulltime education...painted into a corner I would say!
However, best of luck with whichever path you choose