Focus on feelings when obsessive thinking begins. Nines control by slowing down and refusing to act. Recognize this passivity as anger. See anger as good news in disguise. Anger can reveal a previously submerged position.
Nines decide more easily when they're given choices.
They know what they don't want more readily than what they do want. Find the feelings that are numbed by inessentials such as TV, errands, and other ways of postponing action.