artrans, as Chuck said, don't be discouraged. And certainly don't judge yourself or your abilities by the work of others. No matter how good one thinks they are, there is someone out there that will out do 'em every time.
Instead, judge yourself against yourself. Is your work improving? Are your skills increasing. Are you having fun? That's really what matters. This is a hobby, and there isn't one of us that didn't start from the bottom, including the gentleman that built the little Chevy V8. He is just a little farther down the road that most of us, that's all. And I bet he can give you a lengthy list of mess ups on this particular model, too. It is just part of the learning experience.
Hang in there, and keep on working at it. You will be surprised how far you can go in a relatively short amount of time. It just takes dedication, trial and error, and determination to forge ahead.
By the way, welcome to the forum. Feel free to ask questions and get feed back. It is how we all learn. And I am sure you have things to offer here as well, so strap in and stay a spell!