Unless your parents have bucket loads of cash, do not learn to fly any time in the near future. Certainly concentrate on your studies, work hard to get good grades in both GCSEs and A Levels. Then get a degree. You will need money for that. You will then be in position to critcally analyse the factors that should affect your next step. You will also be employable in more than one profession. Spend weekends gliding, but don't go power flying unless you have some serious cash. This will also give you time to answer the question you raised at the end of your last post. A little bit of research will answer that for you.
PM