I would take nothing for mine, she's 5 now and I hope to have her for a good while. Mine is as hardheaded as they come I believe but when it comes to retrieving thats not a bad thing, its amazing what she will go into during dove season to retrieve a bird. Wish I had known more about training her but she does good, spot on on a blind retrieve and takes hand signals well, even in the water.
Stick with her and she will be the pet to your daughter that your first one was to you.