[–] Eleutheria ago
Give the dog a modicum of respect, and it will. I had mine from ages 9-23 (approx), and she was my best friend. She essentially followed me around the house despite both parents and two siblings being nice to her as well. Even when she started to lose her mind a bit, I'd wait an hour at 1 AM to let her out and bring her in.
German Shepards are a great, loyal breed. You'll love every minute you spend with that dog.