Beeminded successfully:
Beeminded with middling success or unsuccessfully (not totally sure why, but I think these are just harder goals for me):
As far as pushups are concerned, they've been successful in the sense that I've been doing pushups regularly for two years and am still going, but -- due to my genes and my current choice not to expend a huge amount of mana points on this goal -- I've been plateaued at 12 to 16 consecutive pushups for a year or more. I second Daniel's recommendation [edit: Daniel being dreeves; also, jetm made the same point] to set a goal that's under the control of you, not of your body's ability to increase its strength.
I have lost money to Beeminder a few times. I think the money helps motivation, though maintaining the graph and "not breaking the chain" are powerful on their own.
This is the public group instrumental rationality diary for October 1-15.
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Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
Immediate past diary: September 16-30
Rationality diaries archive