Various people have called me creative throughout my years.
I still remember my first daydreams. I was about five or so and I was immediately hooked! From that day I've been daydreaming constantly. I can't read a book or look at any picture without it triggering me to daydream. Sometimes this is nice, like when I try to come up with some imaginary things. Other times it's a real trouble maker, like when I try to study or learn something.
For me, my creativity lives through my daydreams. Perhaps that could be something?
Another thing: I think creativity is pretty domain specific. Some people have daydreams about game engines, while others dream about visual. Others might dream about music. A game consists of pretty much every art form. So don't feel bad if you don't succeed with everything. Getting one domain right is a fantastic achievment in itself.