Resilience is more common than we think.
For a long time, the assumption was: anyone who goes through something severe will almost inevitably carry lasting psychological damage. George Bonanno's longitudinal research at Columbia University corrected that picture. Across many studies, the majority of people show a stable trajectory after loss and potentially traumatic events: temporary disruption, then sustained functioning. Resilience is not a rare talent, it is the most common human response to adversity.
Bonanno, G. A. (2004). Loss, trauma, and human resilience. American Psychologist, 59(1), 20-28. DOI: 10.1037/0003-066X.59.1.20