Do you use a simulator? I started using a simulator over this past winter and found I had a lot less nervousness and far fewer "oh crap" moments. What caused me to be nervous was having to "think" about what my thumbs needed to do. After an off season on the simulator I rarely had to "think" about what my thumbs needed to do, I just thought about what I wanted to plane to do whether it was flying inverted or a maneuver and my thumbs usually did it.