The only way to find your creative voice is to use it. If you want to be a better writer, write more. If you want to be a better painter, paint more. If you want to be a better chef, cook more.
But you can’t stop there. You have to share your work. Put it in the world. Let people interact with it. There is only so much you can do to refine your creative skills in isolation.
Art needs to be seen, heard, and felt. It needs to be experienced.
In order for you to find your creative voice, your voice must be heard by others.
Make your art. Share your art. Put it into the world and see what comes back. Do this over and over again and you will find that you are changed.
You begin to be more like yourself. Your work starts to feel more like your own. You discover that what you have to say is worth saying and that you are the only one uniquely qualified to say what you have to say in the way that only you can say it.
If you want to find your creative voice, you will have to be brave. You will have to risk being ignored, misheard, or misunderstood, and you will have to speak up anyway. Speak up through your art. Say what you have to say loudly and persistently enough that you cannot be ignored.