Mean Girls question. Is Gretchen okay?

Saw Mean Girls and I didn't expect to go away feeling the most empathy and emotion for Gretchen. The song she sings in act 1 kinda tore me up. The song was so good and Ashley Park's interpretation of it made me wish the whole show was about her. I honestly stopped caring about the rest of the plot.

But I took Ashley Park's interpretation as there is something really wrong with Gretchen. Depression or some type of mental illness? One of the lyrics in her song is "Mama called me beautiful don't believer her anymore". I mean damn. I wasn't ready for that.

It felt like the show took a really dark and sad tone for Gretchen's song and then it was all happy funny and I wanted to know more about Gretchen and never got the chance cause shes given nothing to do in act 2.

Yes for sure. The little things she does during the song and her facial expressions. I could really see the sadness in her eyes. And how she changed emotions on a dime like her mind is fighting with itself. I definitely see why she was nominated for a Tony. Hope she wins.