My DD was exactly the same at that age, she was pretty bad until about 2. I remember waking up and not moving whilst trying to breath very shallow so I wouldn't wake her It is so frustrating when you can not understand what is going on and why they wont stay asleep! We were giving DD just the one sleep through the day from 12 months because it wasn't worth the 1.5 hours of settling to get a 40 minute nap with a screaming kid at the end. She would wake (between 7-14 months) at least 7 times a night and anywhere up to 17 times

What can you do? If you have tried everything than really all you can do is ride it out. She will get better with time. They sleep when they their little brains mature enough to learn that cycling and sleeping isn't the enemy. But I do think, like anything, some kids sleep better than others and some learn to soothe and settle between cycles much earlier than others. As long as she feels safe, cosy and comfortable she will get there