TIME TIME TIME TIME TIME. That is pretty much all you can do for that. If the dog is worth its weight in kibble it will learn very fast that the birds come from out front (most of the time :mrgreen: ) and they are in the sky.
One thing you could do to help reduce this time is if you have a very good buddy willing to go out and throw ducks or pigeons or bumpers for you. Go out to a pond and hide your buddy in the weeds and you and the dog go and sit in the blind. Do everything that you would if you were duck hunting, camo, gun (not loaded, or loaded with poppers), calls, decoys ect. Start calling and then have your buddy blow on a duck call to get the dogs attention then throw a bird and you jump up and "shoot". After a few times the dog will catch on that as soon as you start blowing your call he better be watching out front to see the bird.
As far as the breaking thing, head to the pet store or local Tractor Supply Company or whatever you have around you and buy yourself a tie out stake and a short 3' lead. When you get to the blind the dog gets tied down so that she cannot go anywhere until you release her. When a bird goes down make sure she is sitting looking at the bird, unclip her and then release. If she trys to break go out and pick up the bird yourself. I know this seems counterproductive since you are getting a dog to pick up the birds for you but she will learn over time that if she is not steady then she doesn't get to retrieve, which is what she loves to do.
You can also do both of these things at home, at the sametime, in the backyard. Just have your kids, wife, buddy stand out about 30-40 yards from you with a duck call and some bumpers. you stand with your dog at heel have her sit, blow on your call then he blows his call and throws a bumper. If she is steady let her get it. If she is not stop her (use a check chord for this so you are in control at all times) and have your buddy pick up the bumper and do it again.
Training a good hunting dog takes time and patients. Just be consistent with what you do and most of all have fun and good luck. Before you know if you pup will be a great hunting dog that all your buddies will love to hunt over.
Teach and then build and then build on what you teach. Baby steps, baby steps.