Purpose: Financial well-being among Indonesian youth has become a critical issue amid rapid digital financial development. However, limited studies have simultaneously examined the roles of digital financial literacy, financial behavior, and mental health in explaining financial well-being within emerging digital economies. This study aims to analyze these relationships and identify factors contributing to youth financial resilience. Research Methodology: This study employed a quantitative approach involving 258 university students in East Kalimantan, Indonesia. Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) with SmartPLS 4. PLS-SEM was applied because it is appropriate for exploratory research involving multiple latent variables, complex relationships, and prediction-oriented models. Results: The findings reveal that mental health has a positive and significant effect on financial well-being, indicating that psychological stability supports better financial security perceptions. Digital financial literacy has a significant but negative effect on financial well-being, suggesting that digital knowledge alone may increase confidence in financial decisions without necessarily improving financial outcomes. This may occur when literacy is not supported by adequate financial resources, discipline, or risk awareness. Financial behavior does not significantly affect financial well-being, although digital financial literacy positively influences financial behavior. Conclusion: This study contributes theoretically by integrating technological, behavioral, and psychological perspectives into financial well-being research. Managerially, the findings suggest that financial education programs should combine digital literacy, responsible financial practices, and mental health support. Limitations: The study is limited by its cross-sectional design, convenience sampling, and student-based sample, which may restrict generalizability.