As a little girl I loved to draw, but never had the confidence to continue, until one day as an adult, I decided to try again. Even now I find it difficult to paint/draw things from my own imagination, but I'm pretty good at copying.
I visited the Smithsonian in DC many years ago, where I watched university students copying masterpieces. I learned it was a requirement for the class, and since then I've not felt bad about doing the same thing.
It teaches me about color, composition, shadows, and shape, etc.