The majority of your answers are awaiting for you in this thread
http://www.pprune.org/forums/showthread.php?t=251490
Sign up to Flyer newspaper, read as much flying material as possible. Build up a good knowledge of aviation and more importantly learn as much as you can about the RAF, such as all their aircraft and bases etc. With this knowledge you will have a better chance.
In addition try to get best gcse and A level results and ring up the RAF ASAP and theyll happily send you information and guide you for your first interview when your around 16.
Hope that helps, best of luck pal
