I'm not trying to be harsh, but it sounds like she's really not getting enough play time and social time. They need HOURS a day...not minutes at a time. Pedigree doesn't really matter either....ALL puppies (even mutts) need socializing and play time. No dog would be happy spending most of it's time locked in a crate. I use a crate, but ONLY at night or when I can't watch his every move. He spends the majority of his day by my side. Not to mention training.....Gunner is 16 weeks and already is solid on 8 commands and hand signals. It is bonding time as well as play time. I can't imagine waiting until a dog is 6 months to start it. I don't see the point at all....it's your dog so you will do what you want, but I would seriously consider how many people have issues with what you've been told. These people have years and years of dobe experience and are all concerned for your dog. At the very least, please seek another opinion from a professional.