So far, every pup I have had have gone through those stages, though Willie was the only one I never had too much trouble with chewing on things. Cody was awful awful awful about chewing. Tommy is bad about chewing on rags and socks and things but never chewed on the furniture, whereas Tasha once chewed up one of our kitchen table chairs very badly and the table and chair set was brand new! She was around a year old at the time too... man makes me glad those days are past for her! hehe

Hopefully you'll be able to educate her about all that though. Puppies can be very destructive and just when you think they've grown out of it, they love to prove ya wrong!