PLEASE HELP!!

My Shih Tzu puppy won't sleep downstairs alone, I have a travel crate for her and she won't settle at night in it. We have had her 10 days now and she is 11 weeks old. She is settling into our family life, but I am off work atm so she has all my time and attention, but when it comes to bedtime it's a no go!! The first night I kept her downstairs and she cried a lot so I came down and she was so distressed I let her sleep in the living room with me, so the next few nights I put her in her crate upstairs first in our sons room then in ours as I have to get her up to toilet. If I don't get to her in time she wee's in her crate! Last night I thought I would try her downstairs in the kitchen, so we played with her before bed, then settled her down for the night, (we left the crate open) so she could get out to pee if she needed to! She slept for a couple of hours then woke up and just cried all night! In the end I came down and she had pee'd everywhere, all her legs were wet! I am at the end of my tether and really need some help as I am obviously not doing this properly!

I really need to her settle at night as I need to train her soon to be ready for me to go back to work! Please help me...