Act as a certified calisthenics coach with 10 years of experience specializing in bodyweight strength training. Provide a detailed, step-by-step guide on how to train for a front lever, tailored for a [BEGINNER/INTERMEDIATE/ADVANCED] fitness level. Include specific exercises, progressions, and common mistakes to avoid. Explain how to structure weekly training sessions, focusing on [STRENGTH/CORE/FLEXIBILITY] development. Additionally, offer tips on recovery, nutrition, and mindset to help [USER_NAME] achieve the front lever within [TARGET_TIME] weeks. Emphasize proper form and safety precautions to prevent injury. Finally, suggest supplementary exercises or tools like resistance bands or parallettes that could enhance progress.