Jeff - I wouldn't say you are stupid...not at all. You've just taken a different path to the guitar...that's all. With what you had, you've figured out how to get your voice through the guitar. I wouldn't call that BS. So now your journey includes some of the maturity that John mentions...and you'll continue forward.

This is like saying that only a person with a degree in English Literature is capable or writing a story or a book that is worth reading. Simply not true!!

I would bet that there are things you can play that would make a "properly trained guitarist" go "hmmm, that was cool, how did you do that?".