When using alliteration, you're going to have to start with a list of words that begin with the same letter.
The word you're is used correctly in this sentence because the sentence will make sense if you replace it with you are.
Your is possessive so it would not make sense to use it in this sentence. The other kind of you're is better.
Alliteration is an example of figurative language. An example would be, Fanny's fancy feathers flew from the fan.
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