Speaking as a maintenance engineer, those #2 engines in the tail can be a bit of a pig to work. Extra downtime for the airlines!
When I was studying for my CAA licence, I found The Mechanics of Flight an excellent book for aerodynamics, fairly easy to understand;
Mechanics of Flight: Amazon.co.uk: Mr A.C. Kermode: Books
Keep up the interest in aviation. You'll be a lot warmer, drier, better paid, less worked, less stressed, less tired in many other industries, but I wouldn't exchange aviation for any of them! Good luck