Hi and welcome aboard, NegativeEffect15.

I'm glad you're looking for advice, and everybody sure has some! I'll go on record with the guys who recommend a high wing trainer. That will be the best investment you could make, and I'll suggest the standard ones: Kadet, RCM Trainer, and the house brand trainers from Tower and other marketers.

One other item that is expensive, but a good investment : RC flight simulators. There are expensive ones, and free ones, and they all help. It's difficult to explain how focused you must be on a trainer, and that goes double for the Extra. The simulator offers you the chance to practice, and if a reversed control causes the simulator plane to crash... you just restart the program!

I'll bet you find it's all fun.

Best wishes,
Dave Olson