That question "what to do" remains unanswerable inasmuch as one seeks its answer, for one does not act according to meaning, but meaning compels one to continue what they are already doing without providing itself in the first place; we find ourselves in actions and merely decides for or against its proceeding yet without action we merely find ourselves dealing, or rather attempting so in vain, with nil. In melancholy we are still generally compelled to eat, drink and sleep, but otherwise left in nil -- just time passing us.