A self-educated single parent and two-time breast cancer survivor, Kimberly Irvine brings a new perspective to what it means to be strong, and helps women overcome adversity by teaching them how to advocate for themselves—as she learned to do for herself.

By reframing the challenges in her own life as stepping stones, rather than obstacles to living with purpose, Kimberly is able to speak to patients and survivors in a deeply authentic way few others can...