I'm confused, which doesn't happen all that often, so its kinda uncomfortable.

Lol
You decided to use a machine you had zero working knowledge of, because you believe that you're stupid and that other people think so too... Have I got that right?
How did you expect that to work out for you?
Were you busily praying for a miracle, or hoping for dumb luck? I don't understand how you believed not asking would bring about the best results for a first attempt at anything.
Gosh, if I am just faced with a different model anything i usually use, I make sure to ask for a demo if its for work.
At home I'm more likely to fiddle on my own though.
Machines come with instructions for a reason, even cell phones have manuals and everyone uses them.
I'll share something about me, without knowing I actually do have a somewhat high IQ, the general consensus is that I'm apparently the most intelligent person in our office (manager actually broached this topic) and guess who asks the most questions in that place??
Yours truly
I ask about stuff that has absolutely nothing to do with my job function, the technical department loves entertaining me and demonstrating for me. It gives me behind the scenes info, which makes me feel more confident at my job.
But mostly its because I just love learning, there's no shame in not knowing something, nobody is born all knowing, each one of us have to start somewhere.