Self-directed learning enables students to take charge of their educational journey by selecting their own paths, thereby fostering intrinsic motivation. Traditional educational models often rely on extrinsic motivators like grades and rewards, whereas self-directed approaches emphasize personal satisfaction and curiosity. Review of existing research highlights how extrinsic rewards can undermine intrinsic motivation, leading to decreased academic performance and well-being. Herein we also present practical examples from classroom settings, demonstrating how real-world applications and student-led investigations can enhance engagement and learning outcomes. Additionally, we address the role of digital platforms in facilitating self-directed learning while noting the challenges of information reliability. Our research review and classroom experiences suggest that fostering intrinsic motivation through self-directed learning not only improves academic performance but also contributes to broader educational success and personal growth. Ultimately, this work advocates for a shift towards educational environments that support students' natural propensity for exploration and self-driven inquiry, creating lifelong learners who are passionate and engaged in their educational pursuits.