Dave,
Sounds like you've been through a really rough stretch, man. I'm sorry.
I don't know what "it" is.
Maybe enjoyment, exhilaration, immersion, creation, catharsis--something like that.
I'm not sure. Something.
Anyway, you sound worn out. Like, beat-to-hell worn out.
Whenever I feel like that, I always lose insight--you know, I can't see past it; it seems like it won't end; I start living a-historically or something, but still not really living in the present. Sort of hard to explain. Moving, but stagnant. Zombie.
In a rut. That's it. In a rut.
Some ruts are worse than others.
Some are really bad.
But, then I get out of them, and its better.
So, here's what you do:
Keep going.
Do what needs to be done in your personal life.
Don't shut down. (this one is important)
Go forward even if things are uncertain, because the clock don't stop, man.
Carry your camera with you. If you don't use it, that's fine, but you've got it.
Alright, that's my piece.
Take care.