Test out my theory, and experience.. Sign up for the Dale Carnegie course in your area. It's like 8, once a week classes, and around $600. You'll find out that you're a capable as anyone else. Everyone fears how they appear, but you'll read (3) DC books,, that should be required reading for anyone that wants to be successful. Everyone learns together about being confident and speaking to your class. That, and squeezing my fingers cured me completely. Whoever is out there reading, with a speech impediment, just fucking do it... I'm waiting to hear your results