As artificial intelligence transforms education, ChatGPT has emerged as a tool for learning, reshaping how students engage with academic material. This study investigates ChatGPT's influence on student engagement among Filipino college students, focusing on self-management and intentional learning--two critical dimensions of self-directed learning. Findings indicate that students who actively use ChatGPT in terms of self-directed learning exhibit increased motivation, deeper understanding of course materials, and greater confidence in independent learning. The results further highlight that self-management skills, such as goal-setting and time management, significantly enhance engagement levels, while intentional learning fosters curiosity and persistence. However, while ChatGPT supports autonomy, excessive reliance on it may pose risks to critical thinking and originality. These insights provide valuable implications for educators and policymakers seeking to integrate AI-driven learning while maintaining academic integrity. This study contributes to the evolving discourse on AI-enhanced education.