My mother is an artist, and I have a strong visual sense. I almost always choose the cover art for my books. I've learned that the more I collaborate, like by having someone do a soundtrack to one of my books, the more I see my own work differently. ↗
The first lesson I've learned is that no matter what you do in your life, you have to figure out your own internal rhythms - I mean, what works for you doesn't necessarily work for your friend. ↗