Answer:
I start new then become old. Start clean but be one dirty. I usually start big then become little.
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
I shoot but never kills
I wiggle and cannot see; sometimes underground and sometimes on a tree. I really don't want to be on a hook and I become a person when combined with “book”.
Men seize me from my home tear apart my flesh drink the sweet blood then cast my skin aside.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?