Sahra Bhimji

The challenge I am having now with writing scripts is the infinite possibilities in every situation and every character, and a sense that I can't find the right structure anywhere.  I am scouring books, websites and blogs but feel stuck.  Three act structure is clearly a bit passé, but reading John Truby's book on the 22nd steps of a screenplay feels entirely mechanical.  Writing a script is like cooking for me, I have a vision of what I want to create, I look at some recipes for inspiration, and then I improvise along the way.  I guess the problem I am facing lately is knowing what to cook, a hearty stew or chocolate chip cookies?