Dear A. V,
My twins were 3 when I started daycare for them. It was really hard on them and me. Give it a few weeks. Speak with the daycare teacher and have her give your daughter extra attention during this transition. Ask her to have your daughter tell her things she loves to do there. Make a project, paint, play with dolls, draw pictures for the refrigerator,etc.
This is all new for everyone. Give it a few weeks.
I promise your daughter will be happy in no time.
I beleive in a good day care. It's the best thing for kids learning to be with other kids and growing mentally and maturing.
Keep me posted.
G. H.