Look at Charlotte Gainsbourg, in the Lars von Trier film Antichrist. She's unbelievable. She doesn't act; she's there. She's great. And you love her for that, because it's so daring, what she has to do. And she does it as if it is nothing. I think she's brave. I fell in love with her when I saw that film. She is a revelation. Total revelation.
There's some real dark days where you just feel like the story is falling apart in every one. Just keep moving forward, even when you are bluffing, even when you don't quite know what is going to happen next.