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In addition to what others have said, there's a lot of potentially useful fail-data at Troper Tales: There Are No Therapists, one of the more grim pages on TV Tropes. (Note: due to the lack of links, this page doesn't share the usual TV Tropes time-sink warning.)
Like many people here, I think a lot about how to become more awesome. I'm fairly optimistic about my chances, because I can clearly remember times in the past when I was less awesome than I am now-- not necessarily less rational, but less productive and with fewer relevant skills.1
So I've been thinking about what changes I believe have most improved my effectiveness, changes which have caused me to learn many useful things and/or greatly increased my productive capacity. I found the list interesting:
Things which are notably not on the list:
So how have you actually improved your own effectiveness?
1 Some of these less-awesome past versions of me suffered from clinical depression, but the last time I had a major episode of depression I was able to deal with it much more purposefully than in the past and still accomplish a large percentage of the shit I was supposed to be doing, so I think there has been improvement independent of my state of mental health.
2 Major consequences for failure seem to be very effective motivators, but since I want to undertake projects that are difficult enough to have a significant chance of failure, I would like these consequences to be highly motivating without being horribly costly, if possible. Ideas?
3 I have learned a lot from pleasure reading, but I'm not sure how much was actually useful, and since I've been reading for pleasure since I can remember there's no easy before-and-after comparison to make.