I don’t know how to portray myself to others

I am good at a lot of things ,and preforming is one of them
but after a show ,I hate talking with the fans
I am amped up ..I just fed off of their energy for hours
Now I am scared shitless I am going to say something stupid

I am very confident in my work ,and I love when people tell me they appreciate the the quality and the attention to detail
but again I hate speaking ,I know I am going to say something that sounds arrogant and over confident

I am basically a shy person for that reason ,but I try and push past it and communicate with people ,hoping one day I can overcome it
People never really know how shy I am ,,I can talk to anyone
but they just don't know
I would love to tell you it gets easier ,,but for me it never has

There is a group called "Toast Masters " I hear they can help people like me overcome the fear of public speaking ,,would you believe I was also once a preacher ? it was a struggle to begin ,and I always add to many details when I do speak
But maybe they are something you might look into
It sucks being 60 yrs old and still having that voice in you're head
"go ahead stupid ,make a fool of yourself "