Answer:
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
You went into the woods and got me. You sat down to seek me. You brought me home because you couldn't find me.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
I had a bright start, but I couldn't take the pressure. I consume everything, yet I don't eat anything. What am I?
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go darkness follows me.
No matter how little or how much you use me, you change me every month.