Well that's what happens when you stepped out of your comfort zone - magical moment!

And I can definitely relate, as for the longest time I have hard time considering myself a musician, because I don't have any sort of formal education in it, but if you think about it, no one can really tell you otherwise and music is a very subjective thing, it is first and foremost a form of expression, and that is however you wanna define it. I do agree that having a common lingo helps to talk to musicians, but as far as your ways of showing your musicality - that part no one can take away from you :)