Thank you 500man!
I got C's in GCSE maths and science, bit rusty now, or rustier should I say but I'm sure if it were something I wanted I'd make that extra effort. My dad's also a genious when it comes to maths and science so I can always ask him!
I'm going to take the plunge and book a trial lesson and see how it goes from there.
I have failed to mention that I have been quite a nervous flyer in recent years

but it's due to a lack of control and I actually (weirdly) really want to go ahead with this!
Fingers crossed!