ORLANDO, Fla. — Ashley Blanco, 27, has grappled with anxiety, depression and obsessive-compulsive disorder for the better part of a decade. Antidepressants and therapy didn’t help. After she graduated college, the COVID-19 pandemic hit. It sent her mental health to an all-time low. “I couldn’t function. I wouldn’t leave my room,” she said. “I completely lost who I was.” The Miami resident was desperate to return to her old self. Her dad saw the intensity of her crisis in January 2021 and decided to recommend something new he had heard about from a friend: ketamine infusions. Blanco was hesitan...