‘What do you do?’ that ugly little question can be a real problem for writers. The screenwriter, Billy Wilder had a fine answer:

‘I’m a writer, but then nobody’s perfect.’

Open Culture has Wilder’s 10 tips for writing a good screenplay. That came out of a collaboration with Cameron Crowe. 

These two might save your life:

5: The more subtle and elegant you are in hiding your plot points, the better you are as a writer.

6: If you have a problem with the third act, the real problem is in the first act.