Immediately who I thought of. Doesn't hurt that Sansa Stark is always compared to the DPs anyway. Cinderella and Sansa both go through hell and come out strong, a little bitter at times because of it (the steel) but as a whole are just strong people.

I could see Mulan too maybe, or Rapunzel.

And Cinderella.

Agree with disnerdtobe.

Mulan starts as lazy girl and then goes through hell. I mean through training which is like torture, especially for such petite girl.

Jasmine and Rapunzel remind me the most of Sansa (especially Jasmine) but the quote itself fits best with Mulan imo.

I thought of Punz.

she was fragile when she never understood her powers and was afraid of it, esp if it hurt her loved ones. She grew from there to trust herself (to live alone in peace) to trust her loved ones and came out "stronger"