I wouldn’t call Musashi ordinary.
But he is. That’s what’s extraordinary about him. He’s not content with relying on whatever natural gifts he may have. Knowing he’s ordinary, he’s always trying to improve himself. No one appreciates the agonizing effort he’s had to make. Now that his years of training have yielded such spectacular results, everybody’s talking about his ‘god-given talent.’ That’s how men who don’t try very hard comfort themselves.
It’s none of their business that you have to learn how to write. Let them think you were born that way.