She expected to be fired. Instead, her supervisor read it, nodded slowly, and said: “Everyone makes mistakes. Not everyone owns them. Thank you.”

She stopped blaming her old boss—the one who had mocked her first design. She stopped blaming her parents for pushing her toward “practical” work. She wrote in a journal: “No one is coming to save me. No one is coming to build my bridge.” That weekend, she drove to the university library and checked out three structural engineering journals. Her hands only shook a little.

The book had been a gift from her therapist, Dr. Reyes. “Read it,” she had said. “But don’t just read it, Mariana. Live each pillar for a week.”

The first pillar was the hardest. Branden wrote that self-acceptance meant refusing to deny or disown any part of one’s experience. So Mariana sat in her dark living room and let herself feel the shame. She admitted out loud: “I left engineering because I was afraid of failing. I was afraid my bridge would collapse. I was afraid of being seen as mediocre.” Saying it felt like pulling a splinter from her own heart. It hurt. But then, strangely, the pain lessened.