Sunni is my first Yorkie, lol. My advice is to buckle up and be prepared to laugh a lot....and just when you think you have things worked out and safe, think again!! Sunni outsmarts me everytime I turn around
I dont know how much you play or excersize your puppy, but that seems to be the only way for me to get her relaxed enough to slow down. I also end up working on training for a good 10 minutes or so when she's zooming as we now call it around here.
My son will say, uh oh mom Sunni's zooming again, haha. He also scolded her and told her "that is NOT how a lady behaves, Sunni"