Stu, keep going mate. Study hard matey and also take heed to CTC's feedback. I failed Stage 2 and was completely gutted. I was asked to reapply in 6 months, did so and I'm off to NZ on CP57 in January.
Failing one stage is definately not the end of the road. If you are as determined to become an Airline Pilot as those on the Wings Programme and those who are now graduates of CTC then you will have no problem passing the stages you still have to do. Make CTC realise just how determined you are.
Good luck mate