C.M.
I have to agree with the other responses. When my son was two he had a wonderful sleep routine, going down the same time every night without a fuss and sleeping most nights all the way through. Then he ended up really sick (this was last year) and hospitalized for a week. He was still recovering when we brought him home and we lavished attention on him. It completely destroyed his routine. I spent the next three months up and down all night, with him screaming and me trying everything to calm him. Finally, as hard and heartbreaking as it was on me, I just started going through a set routine and letting him cry in the end. He took a bath, got a few stories, some warm milk, hugs and kisses, tucked in, and that was it. If he cried the next hour I let him, because I knew he was safe, warm, healthy, and had a full belly. After about a week he improved and after about a month he was back to going to bed without a fuss and sleeping through the night. The best advice I can give you is to start the routine and letting her cry it out now because the longer you spend trying to make her calm down the longer it will take for her to learn to calm herself. Good luck and I hope you'll be sleeping again soon.