Well, I don't know if this helps any...but have you ever thought about visiting a psychologist? I took Psychology last semester and learned about Social Anxiety Disorder. Many times, the patients are not successful until they visit a Therapist, who can see if maybe they have an underlying fear.
Medications help, but most importantly, seeing someone who can see if there are underlying causes can probably be of greater help
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Does that help? Hope everything works out for you!