The biggest threat to your creativity is the fear that it's already been done, said, created. (So why bother?)
Say it, do it, make it anyway - but tell YOUR story along the way.
The story of how you came to know what you know.
The story of what you want to know more of.
The story of why you do what you do.
The story of how you came to care.
And that's how you create what's never been created before.