I think that the use of the word darkness was too repetitive.
The use of it in the last staza was beautiful and it fit. The first stanza it was definitely used to much.
Maybe it'd be better try to find things that represent darkness so you don't have to say the actual word so many times.
Otherwise, good content and emotion.
Well done.
4/5.

Another great poem.....i can feel the emotion in it and thats good...5/5

Once again a bit extra reptition of the word 'darkness'. Maybe look up other words for it, or exclude it completely.