Tracking Your Mood Daily: The Surprising Insights Gained from Matt D鈥橝vella鈥檚 Experiment

Matt D’Avella’s year-long mood tracking experiment has made me think about my own relationship with happiness. In his recent talk, he shared how he scored each day on a five-point…

By Deanna Ritchie | May 22, 2025
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Matt D鈥橝vella鈥檚 year-long mood tracking experiment has made me think about my own relationship with happiness. In his recent talk, he shared how he scored each day on a five-point scale from -2 to +2, documenting his feelings and activities to gain insight into his emotional patterns. What struck me most wasn鈥檛 just the methodology, but the profound self-awareness this simple practice created.

As someone who often struggles with anxiety myself, I find it fascinating how we tend to misjudge our own happiness. We have bad is miserable. This distortion is exactly what D鈥橝vella was trying to combat with his tracking system.

The Power of Consistent Reflection

D鈥橝vella鈥檚 approach wasn鈥檛 revolutionary鈥攈e drew inspiration from high performers like author Jim Collins and entrepreneur Rob Dyrdek, who track their days systematically. What made his experiment accessible was its simplicity: a daily score paired with a brief reflection.

The genius lies in the consistency. By documenting each day for a whole year, patterns emerged that would have otherwise remained hidden. This reminds me how our momentary feelings often cloud our ability to see the bigger picture of our lives.

What I find most valuable about this practice is how it creates accountability. When you know you鈥檒l be scoring your day later, you become more conscious of how you鈥檙e spending your time. I鈥檝e noticed this effect even in my own journaling practice鈥攌nowing I鈥檒l reflect later makes me more intentional throughout the day.

Surprising Patterns in Happiness

D鈥橝vella鈥檚 findings revealed some unexpected insights about what truly contributed to his happiness. Here are the key patterns that emerged:

  • Work appeared in both his best and worst days, showing how our relationship with productivity is complex
  • No day that involved was ever rated positively
  • Taking a full resulted in zero negative days
  • 27% of his best days involved simply having fun

That last point about fun particularly resonates with me. Like many adults, I鈥檝e sometimes fallen into the trap of thinking productivity equals happiness. D鈥橝vella鈥檚 data suggests otherwise鈥攖hat making time for play, whether through travel, sports, or games, significantly boosts our well-being.

Beyond Tracking: Taking Action

What makes D鈥橝vella鈥檚 experiment more than just an interesting exercise is how he used the data to make changes. After noticing that September (when he took time off for his wedding and travel) contained zero negative days, he recognized that perhaps he shouldn鈥檛 center his entire .

This is the crucial step that many miss. Data without action is just information. The real power comes from spotting patterns and adjusting your life accordingly.

The goal isn鈥檛 perfection or eliminating bad days entirely. Instead, it鈥檚 about growth鈥攆inding ways to gradually shift your life toward more of what brings you joy and fulfillment.

Starting Your Own Tracking Practice

After hearing about D鈥橝vella鈥檚 experience, should I start my own mood tracking practice? Here鈥檚 a simplified approach I鈥檓 planning to use:

  1. Set a consistent for reflection (evening works best)
  2. Use a simple scale (-2 to +2) to rate the day
  3. Write a brief summary of what happened
  4. Note key activities or themes
  5. Review monthly to spot patterns

The beauty of this system is its flexibility. You can use a journal, spreadsheet, or an app like Daylio (which D鈥橝vella eventually switched to). The important part is consistency and honesty in your ratings.

What I appreciate most about D鈥橝vella鈥檚 approach is that it doesn鈥檛 require obsessive tracking of like some productivity gurus suggest. It鈥檚 accessible to anyone willing to take a few minutes each day for reflection.

Tracking your mood won鈥檛 magically solve all your problems, but it offers perhaps more valuable: clarity. By seeing the patterns in your happiness over time, you gain the insight to make meaningful changes. And sometimes, as D鈥橝vella discovered, those for fun.

鈥淭he goal isn鈥檛 to get rid of bad days entirely. They鈥檙e inevitable. The goal is growth, to continually find ways to challenge yourself, to improve your circumstances, to move yourself a little bit closer to the life you wanna live.鈥

This perspective shift alone makes the practice worthwhile. After all, you can鈥檛 change what you don鈥檛 measure鈥攈appiness might be the most important metric.

The post appeared first on .

Matt D鈥橝vella鈥檚 year-long mood tracking experiment has made me think about my own relationship with happiness. In his recent talk, he shared how he scored each day on a five-point scale from -2 to +2, documenting his feelings and activities to gain insight into his emotional patterns. What struck me most wasn鈥檛 just the methodology, but the profound self-awareness this simple practice created.

As someone who often struggles with anxiety myself, I find it fascinating how we tend to misjudge our own happiness. We have bad is miserable. This distortion is exactly what D鈥橝vella was trying to combat with his tracking system.

The Power of Consistent Reflection

D鈥橝vella鈥檚 approach wasn鈥檛 revolutionary鈥攈e drew inspiration from high performers like author Jim Collins and entrepreneur Rob Dyrdek, who track their days systematically. What made his experiment accessible was its simplicity: a daily score paired with a brief reflection.

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