I feel for ya. Growing up in the 60s and 70s, I had the opportunity to do all kinds of stuff (I actually remember being "free range" every day after school with my friends until our mothers called us in to supper...we walked or rode our bicycles everywhere, and all of us made it home alive...).
However, when I taught motorcycling in the 80s, I met lots of people from different backgrounds. And I'm happy to report that pretty much everyone who came to our classes learned to ride a motorcycle. Some learned more slowly, but...everyone learned! (Our classes were 4 days on the range, though, so a bit more practice time...)
That said, I'll ask you this: did you ride a bicycle as a kid? Do you drive a car?--manual shift? These are not pre-requisites, but they involve some skills that will have to be learned from scratch otherwise, which can put you a step behind right off the bat.
Sounds to me like you have a positive attitude, which is more than half the battle. With persistence, I'm sure you'll get it! Just keep in mind that confidence is a huge part of riding (as it is with any sport)--don't let little failures get you down, you WILL learn.