I'm so hoping she sleeps til 6 or so tomorrow, but if she wakes early I would try to get her back to sleep like you did before. If she won't go back to sleep - I'd still try for nap around the 12:30-1pm range. It might be tough and if she's super tired, you could do noon. I think it might be rough for a day or two while she resets her clock, but hopefully, if you can keep a schedule, she'll start to fall into it.
The second guessing is the hardest part. When my ds kept waking early I'd tell myself that somewhere in the world it's 7am, so he CAN DO IT. He can sleep til 7am somewhere. It sounds ridiculous now, but I had to tell myself something I guess. I had tried everything else and this is what finally worked for us. Hang in there.