I've seen the world, lit it up as my stage now
Del Rey could be reiterating how successful she has been and her unique experiences. Her success has given her fame and recognition so the world is her stage.
It could also be connected to The Great Gatsby story and how Daisy Buchanan has received lots of fame from society. Del Rey could also mean ‘stage’ by Daisy’s act to make society view her as an important person. This acting makes her seem shallow but regretful of her deeds. Daisy wants security in her life with love and money.
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