An internet mentor of mine is Jake Parker and he speaks on filling your creative bank account. The thought is to absorb influences from all around, and through a variety of methods.
One of the big things you can do as an artist , you have to surround yourself with things that inspire you.Jake Parker
I deposit as much as I can into my CBA. Comics. Movies. Books. Experiences. All of it can make an impact with the next piece of art or inspiration for a story.
Here is the original video containing his complete thoughts on the Creative Bank Account: