Hey buddy, i got some advice to you...
IT HAPPENED TO ALL OF US. This is probably the most realistic WW2 simulation there is. You have to learn the plane, learn it's turns, learn it's speed, and learn it capabilities. Then, once you have that, you need to know the controls, how much effort to make turns, how many rounds to shoot before a plane is taken down, just standard stuff. Sure you've flown alot, but still, fighter planes, are a WHOLE lot different than commercial jet liners. Jets make very wide turns, fighters make quicker turjns, and have GUNS & ROCKETS.