I don't think it is possible to give tips for finding one's voice; it's one of those things for which there aren't really any tricks or shortcuts, or even any advice that necessarily translates from writer to writer. All I can tell you is to write as much as possible.
Poppy Z. BriteI certainly wanted to write a book that was honest about New Orleans without explaining it to death, so much so that the first draft contained references absolutely incomprehensible to anyone who hasn't lived here for several years.
Poppy Z. BriteMaybe they did what they had to do to live, and tried to get a little love and have a little fun before the darkness took them.
Poppy Z. BriteIf you find yourself imitating another writer, that doesn't have to be a bad thing, especially if you are a young or a new writer. However, you should be conscious of exactly how you are imitating him - word choice, sentence structure, motifs? - and think about why you're doing it.
Poppy Z. Brite