Try not to get in that situation, always have the altitude advantage, especially with the Axis aircraft. The fact is, is that you're not going to win every time. You need to learn patience and the right times to attack. These things will come with the more you fly. Each plane has its advantages and disadvantages, study these and use them. Don't go straight to the dogfighting option when you miss your first pass, Climb away and keep the energy. Spit IX is fast and can turn on a dime, stay high. If you're fighting against AI, they always know where you are at unfortunately. Best way to learn, is find a pilot who will take you under his wing on multiplayer. It's there where you will learn the HUMAN factor to dogfighting, all the mistakes people make, the style some people fly. That is the best way. I hope to see you around!