Just remember, Lanse: no matter what you do that's good, there'll always be someone there to criticize it.
If you get the training in the field, it'll be because you weren't trained in a school...and if you get trained in school, it'll be because it wasn't under "in-the-field" conditions. When you're first starting out, it'll be because you don't have 20 years of experience...and when you get 20 years of experience, it'll be because you don't have 40 years of experience. And when you get 40 years of experience, it'll be because you haven't gone back to school to learn the latest techniques.
So don't let the negative folks get to you. Always remember that there's always more to learn, and NO man knows it all or has done it all [except maybe buickanddeere].