You know, I hate it when people complain, considering people have had worse. I mean, while I can't say I'm the worst of the worst, I've had no reviewers for the past few chapters for my pet fic of the moment. None. Whatsoever. I get hits, but other than that, nothing from PC. It's not even the only one, either. *motions to her attempts in Other Writing*
But you know what I do? No, I don't post threads to ask people to cheer me up. I just keep on writing. Why? Because at least I have hits. Yes, you're not getting reviews (or many of them anyway -- as one review is a review, and you've just started and are therefore in that stage of your fanfiction where you haven't established regular readers, even if it is a sequel), but you're getting hits, which means someone is reading (even if Astinus is right about repeat visitors). It's really no reason to go out there and ask for pep talks or anything (which I'm ironically doing, although I'll have to bluntly say I refuse to give you sympathy). If you don't get feedback for your work, you don't just quit. You keep on going because they're not telling you to stop.
You really have to ask yourself why you're writing as well. As it was sort of pointed out, writing fanfiction is something you do because you like writing. You realize it's a valid form of art, and you try to embody your fandom using it. Yes, you write with the idea that you have an audience, but you don't just do it for the reviews and ego pimping. You do it because you have a story to get down on paper. So, if you're only doing it for ego-pimping, then you'll probably need to step back and remind yourself just what the term "fanfiction" actually means. (You know. "Fan" as in "I'm doing this because I'm a fan" and "fiction" because "I'm doing this because I like to write.")