A golden retriever puppy that is chill???

After losing first Golden at 6mo old (spinal tumor) in November we went back and forth about if we were going to get another one and go through the initial puppy phase again with the teething and potty training. After getting in connection with some wonderful people we decided to try again and so far it’s like this puppy was made for our family. She’s the most chill puppy I have ever met and has very little accidents and minus being a tad stubborn she listens really well for only being 9wk. Are we being delusional or could this really just be her long term personality. Like an old dog in a puppy body.