When you are looking for your your unique message, it can be helpful to find your Brand Archetype. This is different from a personality test, as you are answering the questions from the perspective of your business.
If you're a one-person business, it is likely that there is a big overlap between your personality and your archetype. But it is not the same! Think your customer into the picture.
What kind of personality would speak to them, so they can hear your message, listen and ...buy?