It is highly recommended, after adoption, that, as a new-puppy family, you find and follow a training program in your home. There are many accessible programs or You-Tube Canine Trainers you can follow for guidance. You may prefer to purchase a complete  program. Your puppy has been introduced to training from us through the Bad Ass Breeder aka B.A.B program a compliment to this and a good place for you to start your own training could be Puppy Culture.

Also because Newfoundlands ,like all dogs, can have guidelines more specific to them, please check out their Parent Club (3rd link from the top)

I hope you might find these links helpful to you as a way to get started in finding success with your new puppy. 

Practice and Consistency is key! (And Don’t forget good quality Rewards:)