[themodelplumber]

Briefly because I'm pecking this out on an iPod :-)

In your description you have just tipped us off to an analytical gift. I would suggest that you deepen your analyses of your speaking performances, develop and test theories, and refine what you described above into a model for improvement that ever more closely fits your problem like a tightening wrench.

Archetypally, I recommend that you watch films or read books like The King's Speech and note every thought pattern and technique that you can single out. "He talked to so-and-so about X. She encouraged him to try Y. In Y he found that..." (Now, who can I talk to? How will I approach their feedback?) Even if you have no speech impediment, these patterns will probably be broadly applicable to your needs. Good luck!