Training your dog is an ongoing process that will last throughout his/her life.(courtesy: @realharshalchheda )
It's one of the most beautiful journeys, and the more involved you are in it as a pet parent, the better behaved your dog is going to be.
Professional trainers can guide you through the process the best. Their insight is the most necessary, but they are not the complete solution.
As opposed to the popular belief, that your job as a pet parent ends once you hire a trainer, YOUR JOB AS A PET PARENT STARTS ONCE YOU HIRE A TRAINER. It is best to learn as much as possible and to follow their advice on helping your dog adjust to your world.
Practicing with your dog is the key to lasting good behaviour.
I still brush up all of the instruction based training with my 7year old and 4year old dogs every month or so 😇