Your dog needs exercise! She needs to be walked outside of her yard on a regular basis, this will settle her down and make her much less restless while inside. Crating her inside or outide will only make your situation worse. As far as rawhides, you should replace them with hard plastic chew toys. Nylabone makes several choices, but the hard plastic is durable for though chewers like Labs. Wal-Mart and Petsmart carry a large bone-style Nylabone that my dogs love. You may think that they are expensive, but they are a great investment, they last a long time and you will not have health issues like you might have with rawhides. Get one for inside and one for outside and she will always have something to chew, other than your house! I have 5 dogs right now and even the little ones like to chew on the big Nylabones and they never get rawhides!
Take a break fron working (I work part time from home, too) and throw a ball or frisbee for her until she wears out (it won't take long). Find a "ball launcher" so that you never have to touch a slobbery ball. Pestmart has lots of outdoor toy ideas.
My 11 year old has the responsibility of walking the dogs (one at a time) after homework after school and on weekends, too, it is great exercise for dog and child and a bonding experience for the walkers. Be sure to get a resistance collar- we had a Lab and could not walk her without it or she would pull. The "pinch" or "prong" collars work best for Labs. Avoid the thick chain "choke" collars and if you can't find a pinch collar, get the finest link metal choke collar you can find (also a wide variety at Petsmart).
A tired dog is a content dog is a sleepy dog is a quiet dog!
Good luck!