She's getting 10 hours of sleep if she sleeps until 5:00 am. That's about all you can ask for. If you want her to wake up later, try putting her to bed later. But I'd hold off and see what happens this weekend. You might want to wait until after "Spring Forward" before you try to tweek her sleep schedule. Honestly, Sunday night might be the perfect night to attempt a new bedtime.
As far as the rest of the day, play around with a few things. You could try phrasing it differently. Instead of asking her to get dressed, try, "Time to get dressed" (with excitement and a smile). You could try making it into a game or a race. Let's see who can get dressed faster, Mommy or Sarah? Can she get dressed all by herself? If not, maybe make that the next game. Get excited about her being able to do it by herself and make that into an exciting new challenge. What a big girl!
Shake up the routine to see what might help make it feel different to her, and therefore more exciting.
I swear, sometimes parenting is all about adjusting to your kids changes. Just when you think you are finally on top of things, bam! They change in some way and turn your world upside down and you feel like you're starting over from scratch. You just have to remind yourself that you conquered the previous challenge, and you WILL conquer this one, too.