Learn the craft. Do it. Whether through schooling, mentoring, library books, YouTube and self discipline trial and crash and build and burn.
Then take the risk and wildly create your own version of it all. You know the possibilities, the capabilities of your medium and your knowledge and your experiences. Go hog wild in creating and those "rules" will subconsciously guide the methods in the madness.
But before you fly off the edge of all things divinely human, catch the feral hog within. Don't try and domesticate it again, but give it a wide range to roam upon and create within healthy boundaries... before it eats you.
On a side note: My faith has worked this journey. An early and deep study of the Story of Christ early on, through a wild exploration of what that looks like here in the dirt, and more recently into a wild blend of ancient theological truths about the reality of Christ with a purpose-filled adventure in the wilds.
So where are you at? Foundational learning, feral wilds OR roaming pastures in creative pursuits and faith?