Ask HN: Which self-monitor strategies do you use to improve performance?

[throwaway110]

I used a simple excel sheet to monitor my physical activities and had quite some success with it. But now I want to take it a step further and monitor more complex behavior such as software development and business decision making. I want to use the recorded data to reflect on it and learn form it in an efficient way to become more efficient in software development and make better business decisions. So to break it down in more specific questions:

1. how do you monitor your activities (screen recording, journals, ...)?

2. how do you learn from the data?

3. When do you process/learn from the recorded data (every day, after a task is accomplished, ...)?