The phrase 'Now you're gone, what am I gonna do' is an example of personification, a type of figurative language that gives human characteristics to non-human things. It adds depth and imagery to writing.
Figurative language is the use of words or expressions that are not meant to be taken literally. It adds depth and imagery to writing, making it more interesting and engaging. The phrase 'Now you're gone, what am I gonna do' is an example of personification, which is a type of figurative language. Personification gives human characteristics to non-human things, in this case, the idea of being gone.
In addition to personification, the question also mentions metaphors and similes. A metaphor is a direct comparison between two unlike things, without using 'like' or 'as'. An example of a metaphor is the phrase 'My love, you are a rose.' A simile is a comparison between two unlike things using 'like' or 'as'. An example of a simile is 'My darling, you are like a rose.'