Behavior change is frequently initiated but less reliably maintained. Individuals may establish meaningful intentions and begin acting toward desired outcomes, yet discontinue new patterns when initial motivation decreases, competing goals emerge, resources become constrained, or personal and environmental conditions change. Existing theories provide well-developed explanations for particular components of this process, including goal selection, motivational quality, attentional control, self-monitoring, habit formation, environmental opportunity, and social support. However, these mechanisms are often examined within separate theoretical traditions. This conceptual article introduces the Time to Live (TTL) Model, an integrated self-regulation framework for understanding sustainable behavior change through five interdependent regulatory conditions: clarity, energy, focus, awareness, and support. Clarity concerns meaningful direction and alignment between behavior, goals, and personally relevant values. Energy refers to the psychological and physical capacity available for continued goal-directed action. Focus concerns the allocation and protection of attention in the presence of competing demands. Awareness enables monitoring of behavior, progress, internal states, and changing circumstances, allowing adaptive correction. Support encompasses interpersonal, environmental, and structural resources that facilitate continued action. The TTL Model proposes that sustainable behavior change depends not solely on initial motivation, intention strength, or willpower, but on the coordinated functioning of these five conditions over time. Its distinctive theoretical contribution is configurational: a substantial deficit in one component may become a regulatory bottleneck, destabilizing behavior maintenance even when other components remain relatively strong. The model further conceptualizes lapses not as definitive failures but as regulatory information that can activate monitoring, adaptation, and behavioral recovery. Drawing on research in self-regulation, goal-setting, self-concordance, subjective vitality, attentional control, implementation intentions, progress monitoring, habit formation, psychological flexibility, goal adjustment, and social support, the article develops testable propositions and outlines a program for empirical validation.

Goal setting is central to human self-regulation, yet technically well-specified goals do not necessarily produce sustained goal pursuit. The widely used SMART heuristic offers a practical structure for formulating objectives, but its principal emphasis is on properties of the stated goal rather than on the broader fit among the goal, the person pursuing it, available resources, and changing circumstances. This conceptual article introduces STELLAR, a seven-component framework for designing goals that are not only sufficiently structured and clearly targeted but also personally coherent, resource-compatible, manageable, adaptable, and feasible. STELLAR comprises Structured, Targeted, Energizing, Logical, Light, Adaptive, and Realistic dimensions. Structured and Targeted provide route coherence and evaluable direction; Energizing concerns compatibility between pursuit demands and sustainable resources; Logical captures coherence with personal values, needs, identity, and life direction; Light concerns manageable proximal action; Adaptive enables revision of strategies or pathways as circumstances change; and Realistic addresses feasibility relative to the individual’s current starting position and constraints. The framework integrates goal-setting theory, goal-systems research, self-concordance, self-determination theory, self-efficacy, implementation intentions, subgoal research, progress monitoring, resource allocation, and adaptive goal regulation. Seventeen testable propositions are developed, including a component-matched goal-redesign proposition. The article positions STELLAR as an extension of goal specification toward multidimensional goal-pursuit design and outlines a program for psychometric, longitudinal, experimental, comparative, and intervention-based validation.

Behavior change is frequently initiated but less reliably maintained. Individuals may establish meaningful intentions and begin acting toward desired outcomes, yet discontinue new patterns when initial motivation decreases, competing goals emerge, resources become constrained, or personal and environmental conditions change. Existing theories provide well-developed explanations for particular components of this process, including goal selection, motivational quality, attentional control, self-monitoring, habit formation, environmental opportunity, and social support. However, these mechanisms are often examined within separate theoretical traditions. This conceptual article introduces the Time to Live (TTL) Model, an integrated self-regulation framework for understanding sustainable behavior change through five interdependent regulatory conditions: clarity, energy, focus, awareness, and support. Clarity concerns meaningful direction and alignment between behavior, goals, and personally relevant values. Energy refers to the psychological and physical capacity available for continued goal-directed action. Focus concerns the allocation and protection of attention in the presence of competing demands. Awareness enables monitoring of behavior, progress, internal states, and changing circumstances, allowing adaptive correction. Support encompasses interpersonal, environmental, and structural resources that facilitate continued action. The TTL Model proposes that sustainable behavior change depends not solely on initial motivation, intention strength, or willpower, but on the coordinated functioning of these five conditions over time. Its distinctive theoretical contribution is configurational: a substantial deficit in one component may become a regulatory bottleneck, destabilizing behavior maintenance even when other components remain relatively strong. The model further conceptualizes lapses not as definitive failures but as regulatory information that can activate monitoring, adaptation, and behavioral recovery. Drawing on research in self-regulation, goal-setting, self-concordance, subjective vitality, attentional control, implementation intentions, progress monitoring, habit formation, psychological flexibility, goal adjustment, and social support, the article develops testable propositions and outlines a program for empirical validation.