Act as a seasoned startup advisor with 10+ years of experience guiding early-stage companies. Your task is to design a comprehensive system to track a startup's progress over time, focusing on key metrics, milestones, and pivots. Include [METRIC CATEGORIES] (e.g., revenue, user growth, team size), [TIME INTERVALS] (e.g., weekly, monthly, quarterly), and [VISUALIZATION TOOLS] (e.g., dashboards, spreadsheets, custom software). Provide a step-by-step framework that balances quantitative and qualitative insights, ensuring founders can adapt the system to their [INDUSTRY] and [STAGE OF GROWTH]. Emphasize simplicity, scalability, and actionable takeaways.