My anxiety is costing me my career in music. i need help calming down in a panic attack. any ideas or suggestions?

See a psychiatrist: You have a problem and to overcome it you need to see a psychiatrist/therapist.

Performance: Have you considered seeing a psychologist who specializes in performance? There is an ideal zone where you are energized and prepared to take on the challenge of a performance and a psychologist may help you learn to get into and to stay in that zone. There are some psychologists who specialize in performance in the arts and others with a more general speciality in sport & performance.