[N]ever censor yourself while you are still writing the story. Save the censoring for the final draft.
Self-censorship isn’t an exact science. While you’re making sure not to write anything that will offend your parents, you may also be holding back some important emotional truth that will make your story rich and insightful. Don’t block the creative flow. Write it all. Every detail that occurs to you. Until it’s published, it’s private, so be honest, frank, and free.