Try doing them in different coloured gel pens so that they stand out and maybe circle some of your note :)
Answer:
I really want to help you but I don't know the answer hmm sorry
The answer would be hyperbole because it is an extreme exageration. I hope this helps! if you need the others defined let me know
The importance of using a variety of sentence structures is to change up your writing. To make the reader engaged in what you have to say. If your sentence structure is weak and does not vary the reader might get bored. It also better shows your topic.
hope this helps! have a good day!