"In your natural way of producing words, there is a sound, a texture, a rhythm—voice—which is the main source of power in your writing. It’s the only voice you’ve got," wrote Elbow in Writing without Teachers.
Whatever you write shows your style. You can't hide your voice unless you intentionally try to disguise it or try to sound like someone else. A long accepted principle of psychology is that everything you say or do reveals yourself.
Our voice is how we see the world and how we write our impressions. It's the sound of ourselves on paper; it's who we are on the page.
The most serious writers admit that finding their voices is ever ongoing. "I want to sound like the real me," I said many years ago.
If you feel that way, it means being relentlessly honest with yourself. There are several ways I could have written the previous sentence. (And you might write it to sound like you.)
Writers who want to be authentic begin by being true to themselves.
Probing deeply within and being aware of our shadow side enables us to learn to function as authentic writers.
Be you. That's your major task.