I have to agree that starting with a low wing was a bad idea. The low wing warbirds are designed to fly faster and have a higher stall speed, so it is harder to fly them slower.
A high wing would have been ideal to start with, with ailerons. The high wing would have "floated" better and the roll rates usally are no where near as fast as a warbird.
I am glad to see you got some good flight time and fun with the challenger, but my advice would to be not flying the fw-190 until you have some more time under your belt.