The trouble with first lines

There’s so damn much pressure to have it be perfect. Even more so, perhaps, than just about every other piece of your book. And it isn’t that I disagree with this sentiment – not exactly. While I don’t know if any one spot of a novel is more important than another, I know that if I don’t hook my readers, they’ll put the book down and not pick it up again. 

But is it so extraordinarily important that I am agonizing over one damned sentence? Not the scene. Not the chapter. Not even the paragraph. 

One stupid sentence. 

Do you have this same issue, or is it just me? I still haven’t nailed mine down, though I’m working on it. 

(yes, by working on it I mean anything but…)