After her father dies in a car accident, a bartender goes on a downward spiral when she struggles with addiction, she decides turn her life around when she becomes a street dancer with the help of a fellow dancer.

She is a bartender.

The term, "25-year-old young woman" is a bit clunky. (If you tell us she is 25 you don't need to further tell us she is young)

Also "Moonlights herself" is also a little weird. Because...

First: you can just say "Moonlights as a dancer"

Second: We don't know what the lead character's day job is, it doesn't matter if she is moonlighting, unless there is a conflict between the day job and the dance gig.

I revised it.