Great events to visit. Don't feel you need to rush into becoming a pilot. Many airlines like life experience because they will want you one day to become a captain for them. It's all about showing you can manage and be in charge under pressure, those experiences can set you apart. Just like industry work experience. You will also need a backup career to have, so make sure you do well on your A Levels. Because you could easily lose your Class 1 medical, be employed by a company in the middle east with no employment laws like us here in the UK and get fired for loss medical due to a serious accident. Up a creek without a paddle. Take your time with the school decision. Decide Modular or integrated look in person at all the flight schools.
I recommend having a look at the BALPA NextGen. The Website/Booklet has lots of information and impartial advice.
One more thing, try some gliding out if you haven't already. Pure Flying, Cheap too. You'll know then and there if it's not for you. Saving lots of money