I still live at home so Dad and I trained our French Brittany up and I think he's pretty good. Got a 6 month old dd now that is starting to understand whoa,come,and sit. Its not really that hard to teach a dog commands.
As far as training them in the field we just run em on the wild pheasants,grouse,and woodcock that live in Wisconsin and let em figure it out from there. Seems to work good and he is every bit as capable in the field as professionally trained dogs we've hunted with.