One rule of thumb is to try and not spend too much time getting something to its finished state before blocking out your scene. When you feel you get hanged up on one thing and you’re spending lots of time in it, move on to something else and then come back to that other thing and do that over and over, or you run the risk of running out of gas when still half the room is empty. It’s a goo idea to have proxy models of what the whole thing is going to look like first, and then start the refining stage.
