She's 19 mo right? How was her 2-1 switch? Do you think she was ready for it or could all this be part of her not having transitioned properly yet?
11-11.5 hrs in 24 does sound very little, you're right. how long does she usually nap when she has 2 naps a day?
Hope today goes well with the 2 naps. Bedtime 7:30, wake up 6am sound like a good plan for you then and also means you don't have as far to push her.
I'm sure you've talked about this before, but does she sleep in a totally dark room? I think it's important to block out outside light as that varies and sun rises early this time of year (at least here, don't know where you are)
What we do is we have black out curtains and blinds, so hardly any light gets in, but then we have a small night light in her roon on all night. We noticed she'd be really unsettled if she woke at night or early am and could not see. Also, then the light level in her room doesn't change so dramatically at sunrise, and that's worked really well for her. NWs where she'd call for us stopped and she started to just resettle. Same with EWs, so we've carried on with the nightlight. I just thought I'd share in case you think it's something worth trying if complete darkness hasn't helped the EWs.
Have a good day!