When I Broke My Best Friend's Confidence... It Wasn't Easy To Forget

So, last year in English class, we had to write a creative essay about our biggest fear. Me and Jamie were best friends since forever, so naturally, she confided her deepest secret in me. She wrote about being terrified of failing math because she was dyslexic. I didn't know how else to react, but I felt like I should help her. So when the essays were due, I thought maybe if I shared hers with the class as my own, it might make people think twice before judging someone based on their grades or performance in class. The thing is, once I submitted the essay and told everyone it was mine, Jamie looked at me like she wanted to kill me. The teacher praised me for being brave enough to speak up about dyslexia and struggling with school. But then Jamie pulled me aside after class and said my actions made her feel worse. She felt exposed and betrayed. I didn't mean for it to be like this. I just thought maybe sharing her struggle could help others understand, but now she won't talk to me about anything serious. We're not even best friends anymore, at least not in the way we used to be. It's been a year since that day and every time I see Jamie or hear someone mention my essay, it feels like a kick in the gut.