I would study composition and look into the difference between "landscape" and "portrait" camera orientations, and when to use both types of compositional strategies. I would suggest buying a couple of older, out of print books on photography, not digital imaging, and studying the ideas and lessons contained in those books. Learn from people whose work and writing skills were considered good enough to offer for sale, in the era before anybody with a video camera and a YouTube account could offer so-called instructional videos.
Study, from books, or on your own, how to compose images to use the entire frame's space to good effect. Look into how to shoot square aspect ratio images. Learn some of the language of visual communication, from master-level teachers. I'm being totally serious: move back in time, to some older books about photography, books that focus on the fundamentals, not "recipes", not "the exposure triangle" and so on.
Why older BOOKS, and not brand-new books or new YouTube videos? It's like the difference between learning how to write...and how to write a catchy Facebook post.