First and foremost you'll need the ability to do disciplined research and self-study of any aeronautical subject.
That, I'd venture, needs some considerable work yet. Being helpful, look at the "how to be a pilot" publications readily available from BWPA, RAeS and BALPA. If you don't know who those organisations are, there's your next research task!
G
N.B. Flying Eagle, I just looked up complex logarithms. Ouch! You have not made my life a happier place by telling me those exist, which somehow I'd got past my PhD without ever needing to understand. Anyhow, why are they "complex" when they don't seem to involve complex numbers, only complicated ones?
N.B.B. Even in engineering, seldom will you have to deal with anything much nastier than a second order differential equation. Just as becoming a pilot has all the air-law cobblers in the CPL/ATPL exams as a form of right of passage, in Engineering it's the higher mathematics. We'll never get rid of them, but will seldom use them either.
N.B.B.B. Wannabee - go and re-do your GCSEs, without A-C in Maths, English and at-least one Science, and a minimum of 5 grade Cs you'll be regarded as unemployable in just about any walk of life, whether you want to be a pilot, policeman or politician. Don't believe any cobblers your school tells you about going straight to A-levels or a job, without this foundation you are in great danger of spending your life in McDonalds or a Dustcart.