Starting daycare...rough start

Hi everyone, my daughter is 2, and just started daycare after being with me since birth. She’s always been very attached and a bit clingy, so daycare is going rough as expected. She has a sensitive temperament as well.

The first day I left her for 1.5 hours, and she was inconsolable the entire time.

The second day she was clinging to my legs when I was leaving. They said she cried on and off, and had to be held the entire time.

I went for 3 days beforehand with her for an hour, she enjoyed it there while I was there. I have pictures of her teachers on our fridge and we talk about them and “school” often. I’ve also read books about daycare to her.

Any advice from people who have gone through something similar with a sensitive kid? How long did it take them for adjust?

I feel so bad for her :(