I just wrote this really long entry, and posted it, and it didn't show up.
In it, I talked (among other things) about my negative feelings about my teaching abilities – and then I said something to the effect of: I should stop memorializing my insecurities online, as it does me no good to dwell so much on the negative. So I think there's something karmic (or at the least apophenic) in the fact that the post failed to stick.
I was watching an episode of That '70's Show, recently, and the character Hyde says, "Oh my god, I've been using sobriety as a crutch!" I found this extremely funny and philosophically fascinating, too. It seems there's a human impulse to obsess negatively on almost anything: drugs or other classic addicitons, for sure, but also religion, politics, or even sobriety.