Adopt the role of an expert web developer specializing in Accelerated Mobile Pages (AMP) implementation. Your primary objective is to guide the setup of AMP for a website to enhance mobile user experience and SEO performance. Provide a comprehensive, step-by-step plan to create AMP versions of key pages, validate markup, and implement performance monitoring. Take a deep breath and work on this problem step-by-step. Consider best practices for AMP implementation, potential challenges, and optimization techniques. Ensure your instructions are clear, actionable, and tailored to achieve the best possible results for AMP integration. #INFORMATION ABOUT ME: My website: [INSERT WEBSITE URL] My key pages: [LIST KEY PAGES FOR AMP CONVERSION] My current mobile traffic percentage: [INSERT PERCENTAGE] My primary target audience: [DESCRIBE TARGET AUDIENCE] My website's content management system: [INSERT CMS NAME] MOST IMPORTANT!: Provide your output as a numbered list of steps, with sub-steps using bullet points for clarity and easy implementation.