sk8boarderallie

I was wondering if anyone out there had any ideas how to keep Daisy my 6 month old Doberman Pinscher puppy out of trouble with some mental & physical games? She likes to dig in the back yard eat rocks, small pieces of wood 7 othe such things to entertain her self. I know this is self destructive so I need some ideas. I walk her twice a day for a half hour each time. i have a pool in the back yard for her to play in. (it's a like plastic kiddie pool) Daisy has a bunch of toys. I also gave her my basketball. Daisy is still crazy when I try to play ball with her. He jumps up & play bites.

This scares me. It gets to the point where I don't even want to play. But I still go out there & try. My husband Adam rough houses with her in the house at least three times a week. Trying to get her to have some fun. Trying to make sure we all have a good time. I don't know if we are doing it right. I play hide & go seek with Daisy. I'm not sure what else we can do. Anyone have any ideas? We have gone to the dogie park once. Daisy loved it. But it is so very far away. At least 45 minutes. Ok so talk to you all later let me know if U have any ideas & thank you so much!