Feeling the cast, the kinesthetic element, is also critical. The most important feel in flycasting is learning the speed-up and stop of the power stroke. That is the reason I have people practice casting in the car. Again, only do this at a stoplight. Feel the longer stroke and timing of a longer cast.
Controlled breathing is a wonderful relaxation exercise.
The final step of perfecting your mental game is to analyze the steps or elements of your casting. This is like taking a mental test. Explain to yourself the causes of tailing loops. Most people who fail the instructional section of flycasting certification do so because they have not done this mental analysis for themselves. Take time to reflect As a pastor, I tout the benefits of prayer, meditation and reflection.