Welcome to Yorkie Talk. The first year was the hardest for me. Puppy energy! I lost a lot of sleep. Max slept from midnight to about 5 am, when he needed to potty. Eventually they do settle down and fall into a rhythm.
Try having a daily routine. As noted above, exercise during the day is key. Having brief play sessions, training, and walks (when she is old enough/has her shots) helps.
A baby Yorkie is like having a newborn human baby.
