I definetly would be a Federation Citizen,
For work writing/directing/editing holonovels and maybe freelancing for the
Federation News Service in some fashion
Later in life, I might just run for some public office..or even to the Federation Council.
I cant really imagine myself in Starfleet

I would be living, with my girlfriend..and few cats, in a medium sized modern house, in some quiet suburb area that is surrounded with beautiful nature, and has a big garden.
I think we would be maybe living somewhere in America, because she would propably work in the Institue of langues in Brazil, because she has a head for langues

As an hobby I would propably read books about history, watch some holomovies, read obsolite comic books, write stories, paint, draw..and chat with my Klingon, Betazoid, Bolian and Vulcan friends via subspace

(keeping the cats from playing with the transporter would be also in the agenda, im sure

...)
I would propably own a private shuttlecraft of my own, so I could do some travelling, take my gf to work, maybe some occasional space exploration of my own..or maybe just fly around for fun

..