i like the question.
i will try to leave aside the bad taste that so much "we" leaves in my mouth. (not to sound all randian and shit). i like the last sentence. :-)
also, while i have affinity with the post-left critique, i have severely limited understanding of nihilism, and i surely don't equate the two. not implying you do (n1x), just sayin.
hope, like expectation, is a recipe for disappointment. there's the extent of my own nihilism. or maybe that's just pragmatism.
what i do (as best i can), is to create my own life, on my own terms, as much as possible outside the purvey of my institutional enemies. i long ago gave up trying to create an anarchist world, or change the world, or destroy capitalism, or whatever. my goal is to live my own life, as anarchically as possible; with others that have similar desires, as much as possible.
i actually think that how this plays out is related to urban vs rural lifeways. living in a city makes living "in revolt" essentially a necessity, unless one is not interested in actually living anarchically (but rather is just into theory, discussion, writing, etc). the city, as a microcosm of the state, is on the trajectory of the panopticon. it pretty much defines mass society, which i despise, and consider to be one of the biggest obstacles to anarchy.
living rurally, for me, provides a much broader array of possibilities for creating one's own life, on one's own terms. of course it has its drawbacks as well. and so many @s i know seem to desire living in cities, with all the amenities and social interaction that urban living provides.
so, my take is this: what anyone does ought to be driven by their desires, and how they prioritize those desires. it is very difficult for many to cease thinking about how to change the world (destroy capitalism, etc), and focus instead on how to change their own lives to be more in line with their desires and priorities. if one's primary desire is to make life better for everyone on the planet (or even just some subset, like the "proles"), my guess is they are destined for disappointment. i'd love to be proven wrong.