Well done you for feeding for so long. My experience was that my son breastfed from 12 and 18 months of age just at bedtime. He would never entertain a bottle or dummy and cuddles just wouldn't do. I tried all sorts of things but nothing settled him. Several times I said he was getting too big a boy to have my milk and he always said 'No' and got upset. Then, one day, completely out of the blue when I said the same thing to him he said 'OK' and promptly turned over and went to sleep. That was it he never wanted to breastfeed again. Therefore, my tip would be to wait for your daughter to be ready to stop.