Yesterday I picked up my 11 week old female yorkie and took her away from her mother.

For the first hour, she was shaking. After that, she was more calm.
However, at night we tried to let her sleep in her crate in our kitchen but she kept whining. So we let her sleep beside my daughter where she could see her, but she kept crying!
We just ignored her until she stopped and fell asleep.
(She was in her crate for 5 hrs and pooped, but the crate is just the right size for her.)
My concern is that I cannot leave her alone for just 30 seconds, even when I am in my apartment! How can I leave her alone? Please help!!
By the way, her previous owner spoiled her by hugging her everytime she cried and never used a crate. Should I use the crate?