It makes sense; but there are two phrases there that could be divided to make the sentence flow better.
“I am not happy with myself, nor will I ever be.”
The story is told from the view point of the story's protagonist, Thomas.
"Like sparks from a blacksmith's window" refers to the sparks that happen when a blacksmith is working. The meaning depends on the context. The context should usually be something like anger, exploding anger, or it could be excitement...
Answer:
Poem
Explanation:
The definition of a poem is a collection of words that express an emotion or idea, sometimes with a specific rhythm.