The following authors have used first person without ill-effects: Robert A. Heinlein, Theodore Sturgeon, Arthur C. Clarke, Stephen King, Kurt Vonnegut, J.D. Salinger, Herman Melville, Mary Wollstonecraft Shelley, Charles Dickens, Mark Twain, and (correct me if I'm wrong) Dante Alighieri. The prejudice against first person is stupid. The writer should write his story in the voice that is most appropriate to the material. All other considerations are irrelevant.