I too brought my Ellie home at 8 weeks and am a first time yorkie mommy. Ellie still gets wayyyyy excited after a long snooze and bites hard! I've tried replacing with chew toys, saying ouch etc. I think the most effective is walking away or putting her down when she gets to rough. She's now 13 weeks and is getting better all the time
. Congrats on your new baby. We adore our baby girl!