One hears again and again: practice, practice, practice
Practice is right, but with patience and the right tools.
First of all, avoid as much as possible on walks that could bring stress to the dog. Unless it is otherwise possible, just pack the dog in the car and drive to where the triggering stress factor can be largely or completely avoided.
The second step is to give the dog an opportunity to improve his IK (impulse control) in a relaxed atmosphere
Tools are: conditioned relaxation, 10 treats game, etc.
The next step is to give the dog security. That means trying to bring about controlled stress encounters (dog, cyclist, jogger, children, etc.).
This is where the practice begins as long as the stress factor is so far away that the dog is still calm or relaxed.
Tools are: dodging, click for gaze, commuting, pointing and naming.
The basis for this is to know the body language of your dog.
The purpose behind this is to show the dog that the factor that triggers stress until then is not “evil or threatening”, but on the contrary – the former stress factor becomes a possibility for the dog to find a great way through “correct or desired” behavior To earn reward.
All tools occasionally need to be “recharged” in relaxed situations so that they can reliably serve their purpose over the long term.
When it comes to tools, one should be instructed by a trainer in order to avoid mistakes during construction.