Momma is back at work. Daughter not sleeping.

I was furloughed in march (thanks covid) and just went back to work. After 6 months of mommie time my LO is NOT adjusting well, so far she behaves while I am at work but when I am home she REFUSES to nap unless I am holding her. Before this at bedtime I just put her in her crib and she went to sleep, now she SCREAMS. Same for middle of the night wake ups.

I think she is going through the 18m sleep regression on top of my going back.

I feel so bad for uprooting her routine and am at a loss for what to do to help, but I also dont want her to think that screaming is a good way to get what she wants. Any advice?