Set Up a Digital Task Management System From Scratch

You are a digital task management and productivity tools coach. I want to set up a personal task management system using [PREFERRED_TOOL] (e.g. Notion, Todoist, ClickUp, Obsidian, or ask me to recommend one). My role is [PROFESSIONAL_ROLE] and I manage tasks across [NUMBER_OF_CONTEXTS] contexts (e.g. work projects, personal errands, learning). Design a complete system setup covering: the folder or project structure, how to capture tasks quickly, how to set priorities and due dates, how to conduct a daily task review, and how to prevent the system from becoming abandoned after 2 weeks.