For barking, we use a can with pennies inside it. The noise scares Franklin and he stops in his tracks when I so much as touch the can. A lot of people use water in a spray bottle.
What do you mean by she's crazy? Like, does she have too much energy? If so - that's what you signed up for when you got a Yorkie
. But in all seriousness, do you walk her? I find that daily walks tire Franklin out and he's much more enjoyable that way.