One real easy way to show her she is not a bad sub for setting limits as they come along with you as the two of you explore would be to get her a membership here and show her your post saying she isnt bad.
If she has other submissives to speak too, she will learn a lot about maintaining her dignity and self worth.
I sure wish I had known about this place when I was all alone learning much of this the hard way back when I first started.