Congratulations on getting chosen to be Dog of the Day! Gracie is so adorable, I'd love to just reach into the computer screen and give her a hug. Everything you describe in Gracie's behavior is so typical of boxers (it looks like her pointer side is recessive). They are very high-energy and hard-headed which makes them harder to train than some breeds. They also love life - it's the famous boxer spirit, they just wanna have fun, fun, fun. Mine makes me laugh every single day because they are just so silly. I've attached Ginger's picture - she's half boxer and half lab.
I wish you many happy years full of laughter with your wonderful Gracie.