Set Up Google Calendar for Maximum Productivity

Act as a Google Calendar power user and productivity coach. I want to use Google Calendar as a full productivity and time management system — not just a meeting holder. My role is [PROFESSIONAL_ROLE] and I currently only use it for [CURRENT_CALENDAR_USE]. Design a Google Calendar power setup covering: colour-coding system by energy or task type, recurring time blocks for deep work, personal commitments and admin, how to use multiple calendars for different life areas, the best Google Calendar integrations for productivity, keyboard shortcuts to save time, and how to use the Goals feature or time blocking to protect personal priorities.