Answer:
I can help with making your essay sound smart and proffessional without overdoing it. :D
I can also correct grammar and spelling, and make it as concise or detailed as you would prefer. Just let me know in the comments
Answer:
Before Nathan started to help, I didn’t think we could finish.
The sentence is not listed, but the word impending means something that is about to occur (synonyms include upcoming, coming, near, to come, on the way etc.)
A simile becomes a cliche when it is overused. Pretty much any word or sentence formation becomes a cliche when overused, not just similes. An example of this would be saying that someone is "as blind as a bat", which has already become recognizable and widely used, making it a cliche.
Yes this can be a cautionary tale