Hang in there man. Just as there is the darkness of the porn tempting and goading you to come back to it, there is also the light of your future freed self that can be an important guide to you. You're not alone (for one thing, all of us on this forum are in this together), because your future self is working really hard to reach out to you and help you bridge every gap, every difficulty, every threshold, every uncertainty, every weakness. This future self is stronger, because it's got the mental muscles that you built for him - that you're building every day. Even on the days when it feels like it isn't a struggle, when it feels like a breeze so unreal. And then the days when you're fighting and you feel like you've got nothing but more fighting ahead of you - he is with you, because he's been there with you because you were the one who carried him across.
Let yourself feel the moods, they're part of real life, and actually, they may be a sign you're getting better. But then make them fires for action, for doing things, new activities.
I hope the social event helped. Connecting with people is about the realest thing out there (which basically every ad and commercial hopes to approximate via their product).
EDIT: Re "future freed self" - I don't mean that in a sort of pre-destination way, as if there is a fate or a providence out there (I mean, people are free to believe that if they want, I just want to clarify what I meant here). I mean in the sense that if we're quitting something serious and deep-seated as porn, and we're quitting this willingly, it means we have some faint idea of what life is without it. Well, from there on, that life is presumably better, and better on a vastly different and qualitatively better level, so there's got to be something almost "divine" about this future self--I mean, it "seems divine" because we're still in the transition of trying to quit the addiction and that takes everything we got. But still, I think a higher standard has been born by the very choice of wanting to deal with one's problem and we can make that criterion explicit to ourselves as we struggle onwards. Whatever that future self is, it's not something set in stone, but one thing is definitely etched out of it for good, and that is PMO.