That's totally right, something that always motivates me is watching the old stuff from good authors here in newgrounds, and see how long they took to get as good as they are. I procrastinated for lots of years, and now I wish that I had practiced for all that time and wonder how good I would be. That said, progress is different for everyone, but I know that pushing myself and just practicing will work, even if it takes forever, I still suck, but creating is fun regardless of the final result, and improvment comes naturally.
That said, I agree with you that Bocodamondo is a great exemple, I watched his last animation a couple of days ago, and I was just... "Is this that guy who made that socks thing? OMG, this is so much better, good for him!" I was legitimately amazed and happy for him. So yeah, I guess he is the best example I can think right now.
Chdonga
Yeah. It's best the newfags learn through trial and error because that's how we learned.
redminus
I do like to learn that way personally but I could see how a lot of people would find it really frustrating (but should suck it up and do it anyways). Maybe it just comes down to patience