The metaverse, an emerging technology characterized by interactive and simulated environments, presents a transformative opportunity to reshape learning processes, beliefs, and cognitive behaviors. This paper investigates the impact of the metaverse on education and mental habits through a systematic literature review and empirical data analysis. A comprehensive review of 50 scientific articles published between 2007 and 2024 was conducted, complemented by a survey questionnaire distributed to 100 participants. The literature review highlights that the metaverse enhances learning experiences by offering immersive, experiential, and personalized environments, while also influencing users' beliefs and fostering new cognitive patterns. However, challenges such as digital dependency, infrastructure costs, and ethical and privacy concerns must be addressed. Quantitative findings indicate that the metaverse boosts learners' motivation, focus, and self-confidence. Qualitative analysis reveals four key themes: increased focus, enhanced self-confidence, technical challenges, and security concerns. The results suggest that the metaverse not only enriches learning but also facilitates changes in mental habits. Notably, this study is limited in its assessment of the long-term effects of metaverse use on real-world focus due to constraints in controlling usage duration, which may potentially explain discrepancies with studies reporting adverse effects of prolonged engagement. By identifying opportunities and challenges in educational applications of the metaverse, this paper provides actionable recommendations for its effective integration into educational systems.