Help!! 19 month old sleeping terrible!!

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For the last few weeks our 19 month old has been sleeping so bad. She used to go to bed 7-8 and sleep until 7-7:30 in her crib. Lately....like right now....she will wake up in the middle of the night and just want to be held or wants to get out of her room. She will sometimes be up for several hours. She is also waking up anywhere from 5:30-7, but most days before 6:30. I have to wake up at 6 to be at work by 6:45.

I figure a part of it could be the 18 month sleep regression, but I thought we already went through that.

Has switching to a toddler bed/twin size bed on floor helped anyone else?? Is this a sign she is done with her crib?

During the weekends I have cuddled her in her bed (yes in her crib haha) for a while and she went to sleep, but then seemed like she wanted me out because she couldn't turn into her belly. I don't trust this method of I have to work because I kinda doze off. In the early mornings I have to work I have brought her to our bed (which we have never really done), but she doesn't really go back to sleep and I don't super want to start that habit.

I just need some positive advice please!