As millennials have become the dominant managerial generation in 2025, many face unprecedented pressures and burnout in their leadership roles. Interviews with managers across sectors reveal high stress levels, emotional exhaustion, and a lack of preparation or mentorship. These leaders grapple with an intensified cycle of work demands, responsibility for Gen Z employees, and little institutional support. Mental health impacts are manifesting in serious conditions such as panic attacks and ER visits, underscoring a growing crisis. Despite efforts to model empathy and flexibility, millennials report feeling trapped between old expectations and new workforce realities. Experts describe a burnout epidemic that threatens managerial effectiveness and employee well-being across public and private sectors.