What a dog need (1)

Dogs need consequence.

Dogs are somehow like little children. Without consequence you will not match any goal.
How does consequence look?
Before you get a dog you should think about, what the dog is allowed to do, and what not.
So, of you don`t want him to sit on the couch every single person of your family has to do so.
Every time the dog trys to jump on the couch he has to be removed. From everyone. But just one person at the same time. it is not nessecary that you all together shout "GET DOWN".
If one of you allowes him once to sit on the couch, you lost.
And you can start right from the beginning.
Some dogs have a real bullhead and the will try and try and try if they see a little chance to get what they want. Some others give up with a while.

So be consequent at any point, at any level of training and any day.
Sounds impossible, but try. You will have, what you want, and your dog knows, how the wind blows. That`s good for him. He`ll be a happy dog, if he knows his position and possibilities.