Answer:
I must be broken before you can use me.
I suck.
What goes up but never comes down?
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
I am all around yet to me you are half blind. Sunlight makes me invisible and difficult to find.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?