I struggle with time management like this as well. I would suggest sitting down with your daughter and figuring out a very specific daily schedule (weekends too!). Work out exactly what she needs to do and when. Schedule in free time as well. Then, make several copies and hang them in places where she will see them. Set timers (we use a little kitchen timer) for when she needs to switch to the next thing. At first, I think you're probably going to have to baby her even more, but eventually the activities will get more automatic.

Another thing that helps me is a marker board. I have a small whiteboard that I got for about $7 from Walmart. Since I have trouble getting ready on time in the mornings, before I go to bed I write down everything I need to do in the morning. That way, when I wake up, it's all right there were I see it right away.

I'm glad you're trying to help her with it right now. She's still young enough to learn good habits before the bad ones really become a problem. I'm 19 now and trying to learn all these things on my own and it's really tough.