Fabbe - I say this without trying to patronise you. You are 16 and have loads of time to train. There is nothing wrong with planning ahead but things may certainly change for you within the next few years. Have a general idea what you want to do but don't write up any time lines. I know what it's like at that age, I had OAT planned for when I was 18, jet job by the time I'm 21 and laughing all the way to the bank when I got my command before I'm 30 - not to mention that Aston Martin!
Then I woke up.
Generally, unless you're very lucky things don't go to plan. If I was you I'd stay at school and concentrate hard on what you're studying now, keep the flying as a hobby maybe but get yourself a good education whilst you can - the world is becoming more and more competitive and you will need something to fall back on if it all goes tits up. This is really general advice, I dont know what your personal situation is - your Dad could own Apple for all I know. Just enjoy your youth whilst you've still got it, pleanty of time to worry about things like this when you're older (Y).
Take it easy, S88