I'm in a similar position, but at one year younger.
I'm pretty sure I can get decent grades in my GCSE's (similar to piper warrior pilot), and was considering doing Maths, Geography and Physics at A-level. Now If I can achieve all of this and pass in everything, can I go straight on to a sponsered pilot training scheme and then become employed by an airline without real problems? I mean.. I've been told that you may need a degree otherwise no-chance even if you have a commercial multi-engined pilots license.
grr!