Consult a mental health care professional for proper clinical assessment and treatment.
You can Visit Psychiatrist and Psychotherapist both if any nearby.
Can take online consultation through practo also.
Next Steps
you can also practice following self help exercise
1#Tighten your pelvic floor muscles, hold the contraction for three seconds, and then relax for three seconds. Try it a few times in a row. When your muscles get stronger, try doing Kegel exercises while sitting, standing or walking.
#2 Do visual process for letting go performance anxiety
#3 follow a healthy lifestyle example right diet, exercise and proper sleep
visit Clinical psychotherapy for further treatment