This conference proceeding presents the development of a beginner-friendly cybersecurity course created and taught by students, for students, at UC Santa Cruz. The course uses experiential learning, hands-on activities, and a custom Capture the Flag (CTF) platform to introduce foundational topics such as Linux, digital forensics, web hacking, and technical documentation. Offered through the Jack Baskin School of Engineering's First Year Design program, the course is structured to support students with no prior experience and emphasizes collaboration, design thinking, and real-world application. Findings from three offerings show increased student engagement, confidence, and skill growth, demonstrating the effectiveness of peer instruction and structured experiential learning, as well as success in introducing complex topics to the early-career, lower-division population.