At the beginning of this year I was doing a experiment for about a week in which I logged the "values" for different internal states each half an hour. That helped me to draw some conclusions about how my motivation, energy and creativity works. But I don't think the experiment is over. Some of the things I logged weren't clear nor interesting enough so I have been thinking about what could be interesting to look at. Additionally I am interesting on what you have to say about which of the following internal states do you find more useful to learn something new about yourself.
Because I have a very small audience interesting data can take a while to gather. If you are interested in the results tell some friends to answer the poll. You can also subscribe to the newsletter as I will tell in the monthly summary whenever I see some meaningful data.