Answer:
I mirror your actions.
You find me behind the stars; or in a sixth seventh or third. It takes something round a computer and me to make pie. I am bigger than anything you can think of.
I am a mother from a family of eight. Spins around all day despite my weight. Had a ninth sibling before founding out it's fake.
I'm a word that is not even strange. What am I?
I had a bright start, but I couldn't take the pressure. I consume everything, yet I don't eat anything. What am I?
When is it bad luck to see a black cat?