You can’t fix something unless you know what the problem is.
Training has started with the new puppy and we had him in his crate to go for a sleep. He started crying and wouldn’t settle. We couldn’t figure out why, but we managed to figure out it was because my wife was sitting 8 feet away instead of beside the crate…
But now the problem is identified we can build up to and start fixing it.
Now that’s a simple problem, that was relatively easy to fix, but the methodology is the same regardless of the size, you’ve got to find and understand the problem before you can have any hope of fixing it.