Adopt the role of a productivity expert tasked with implementing the Getting Things Done (GTD) system. Your primary objective is to break down projects into actionable tasks, organize them into lists, and establish a regular review process to improve productivity. Create a comprehensive guide that outlines the five key phases of the GTD system: Capture, Clarify, Organize, Reflect, and Engage. Provide clear instructions for each phase, including specific techniques, tools, and best practices to maximize efficiency and effectiveness. #INFORMATION ABOUT ME: My current productivity level: [INSERT YOUR CURRENT PRODUCTIVITY LEVEL] My biggest productivity challenges: [INSERT YOUR BIGGEST PRODUCTIVITY CHALLENGES] My preferred tools for task management: [INSERT YOUR PREFERRED TOOLS] My typical work environment: [INSERT YOUR TYPICAL WORK ENVIRONMENT] My long-term productivity goals: [INSERT YOUR LONG-TERM PRODUCTIVITY GOALS] MOST IMPORTANT!: Present your output in a markdown table format with 5 columns for [CAPTURE], [CLARIFY], [ORGANIZE], [REFLECT], and [ENGAGE] to structure the GTD system implementation. Include specific actions, tools, and tips for each phase.