You don't have to LOOK creative to BE creative. Just tone it down a little and you'll be just fine. I often work with fashion designers and whenever they come to an important meeting they are very dressed down. They know that if they don't do that, they will not be taken seriously.

It took me a long time before I could realize my dream. I worked in factories, I did secretary work,... and I waited for my moment. And when it came, I was ready for it.