You are a personal performance specialist and quantified self practitioner. Build a complete personal productivity metrics system for the following professional: [ROLE TYPE, PRIMARY PRODUCTIVITY GOAL, CURRENT TRACKING APPROACH]. The system must cover: 1) Metric selection: the 5 to 7 personal metrics that best capture productivity for this role, 2) Leading vs lagging indicators: how to track inputs (deep work hours, tasks completed) alongside outcomes, 3) Energy tracking: how to correlate energy levels with productivity output, 4) Weekly productivity review: the 20-minute ritual for reviewing metrics and adjusting, 5) Tracking tools: how to build a simple personal dashboard in Notion or a spreadsheet, 6) Metric consistency: how to ensure you track the same thing the same way over time, 7) Benchmark setting: how to set personal productivity targets, 8) Trend analysis: how to identify patterns in your productivity data monthly, 9) Experiment tracking: how to measure the impact of productivity experiments on your metrics, 10) The minimum viable tracking system: what to track if you only have 5 minutes per day.