This study examined psychological distress and well-being as a function of the characteristics of personal projects and project-relevant social support and social hindrance provided by the three most important people in subjects' lives. Three project factors (Project Mastery, Strain, and Self-Involvement) were found to account for significant variation in both psychological distress and well-being. Project support was generally found to be significantly related to well-being, but not to distress. However, project hindrance was found to be significantly related to both distress and well-being. Additional analyses revealed that the behavior of the most important person in a subject's life is of special significance in accounting for variations in psychological distress and well-being. Finally, evidence of the independence of support and hindrance was observed.