Don't stress. There's no way you can do it all in two days. And that's okay! DD will never know what she missed!

Personally, I would drop some of the bigger rides and get more FP that your DD will go on too. It's going to be a lot of waiting around for her if she has to wait for you to go on all the big rides.

One FP you might want to consider is Enchanted Tales with Belle, particularly if your DD likes princesses. It's a great little show and each child gets a pic with Belle at the end. The line gets long though, so if you don't FP try to do it early in the morning.

My plan would be to spend one day concentrating on Adventureland and Frontierland. The other day head straight for Fantasyland and if you have time do Tomorrowland after. But honestly you could skip Tomorrowland altogether if you're willing to pass on Space Mountain. There's not much there for the little ones.