Nice to see someone from Newcastle Aero Club! I have flown there once (have more than 1 hour though!) and have a block of lessons booked for the summer, after my exams. The Warriors there are fantastic to fly and the instructors are all friendly! I am only 17 but i certainly don't think that you are daft in trying to get into commercial aviation, you can't get a sponsorship maybe, but, hey, you have as good a chance as any i suppose, if you have the money (want to give me some!)
Ian