It is important for the trumpet to be an extension of the musician. If that bonding has not happened, playing the horn becomes something the body will fight rather than all parts working together. Suggestions for controlling anxiety include preparation, motivation, and purpose. Three kinds of preparation were mentioned. Physical preparation includes not just practice on the instrument, but also exercise such as running or swimming, which also help the musician learn to breathe properly.
Mental preparation involves having a certain frame of mind.
Ask yourself what are you thinking about. Worrying about making mistakes or having people criticize you can cause anxiety. Spiritual preparation was referred to as including emotional stability, self-confidence, and a sense of inspiration. Finding out who you are and how you're going to express yourself is essential. Motivation can contribute to performance anxiety.