You need to give her some structure(limit her freedom some!) She shouldn't be given the choice to run around when you are training. She should be on a line and giving you focus/rewarded when she does good.
The treibball can be an exercise ball that people use, but you have to teach the dog not to bite it, there are youtubes on that, as well as info on tracking and nosework. If you can get her into a class that may be helpful.