Answer:
Born of sorrow, grows with age, you need a lot to be a sage. What is it?
The time between daylight and darkness when blood drinkers like to come out
I help you carry your books.
Bright as diamonds, loud as thunder, never still, a thing of wonder. What am I?
I start with an E end with an E and have a letter in me.
It's what light turns into in the night