Crate training a 5 month old Lab/Dalmation Mix?

[mommyof2]

I have been trying steadly to crate train my 5 month old Lab/Dalmation mix and am having alot of problems. I bought the kennel with the divider which I have moved as she has grown but she still soils in the kennel. She is also super hyper and have begun building her a safe area in the back so she can run around. I bought her to keep my little girls both under 3, but am unable to have the puppy around them because the puppy likes to jump and I am afraid she is going to hurt them by accident. I really don't know what to do? I have thought about finding her a better home but at the same time she is part of our family. In the same instance I have also been thinking about getting a smaller animal as maybe her companion of sorts. I don't know if anyone has any suggestions for me i'd really appreciate it.