There's this pet phrase about writing that is bandied around particularly in workshops about "finding your own voice as a poet", which I suppose means that you come out from under the direct influence of other poets and have perhaps found a way to combine those influences so that it appears to be your own voice. But I think you could also put it a different way. You, quote, find your voice, unquote, when you are able to invent this one character who resembles you, obviously, and probably is more like you than anyone else on earth, but is not the equivalent to you.