This study applied the Johari Window as a tool to assess individual self-care capacity and adopted the selection, optimization, and compensation(SOC)model as an indicator of graceful and successful aging. A total of 750 participants completed the Johari Window and SOC questionnaires, allowing for analysis and comparison of psychological health indicators across different genders and age groups. The results indicated that female participants and those from Generation Z demonstrated less favorable outcomes in graceful and successful aging compared with men/other genders and other age cohorts, a finding that warrants further attention. The analyses further suggested that the central challenge in a super-aged society lies not merely in chronological age, but in the establishment and maintenance of physical and psychological well-being among older adults, particularly women. Promoting self-awareness and fostering a safe environment for self-disclosure can expand the“open self” while reducing the negative aspects of the self (including the blind, hidden, and unknownselves), thereby supporting the development and maintenance of both physical and psychological health.