I found myself going through faces of obsessive determination and complete apathy last year. I think part of that's probably just life: Everybody runs into dilemmas. In cases like this, where partly it's a matter of being online talking to a focuses set of people, taking a few months off works wonders. Turn on noprocrast, set your away time to 65536, and figure out what else you can do. I just got access again a few weeks ago, and I don't feel the pull of this community anymore, so I don't feel as committed and frequently hopeless. With luck something like that could help you out as well.
(My other, snarkier advice is to go to Metafilter and look at every thread regarding a Paul Graham essay, because Metafilter's a bright community that loathes Paul Graham. My opinions are somewhere in between there or here, but reading those threads in June was rejuvenating in some ways.)