What to do when inspiration doesn't come; be careful not to spook, get the wind up, force things into position. You must wait around until the idea comes.
The directing of a picture involves coming out of your individual loneliness and taking a controlling part in putting together a small world. A picture is made. You put a frame around it and move on. And one day you die. That is all there is to it.
You walk through a series of arches, so to speak, and then, presently, at the end of a corridor, a door opens and you see backward through time, and you feel the flow of time, and realize you are only part of a great nameless procession.