As an artist, it can be tempting, ‘safe’ even, to spend all your time on your own art. But if all you do is focus on your stuff, it can be difficult to find new inspiration, or to think in new ways, or to see something from a different perspective (which can apply to your life in general, not just to your art). Doing that, you can fall into the trap of repeating yourself, or of become boring, both terrible places to find yourself. One of the things I do to try to avoid that, as a writer, is to read various magazines (printed and online), and to occasionally pull a favorite book (or books) off my shelves and read it (them) again. I am a huge fan of science fiction and fantasy and have over a hundred books I’ve purchased over the years by authors like Asimov to Zelazny and so many others in between. Having written a few books and sat in on writing groups, I am much more conscious of the technical aspects of a book as I read it, though I am still able to enjoy them. Now, however, I am more able to appreciate a nice turn of phrase, or jot down synonyms that don’t always occur to me as I write, for handy reference later. Taking in these different ways of painting a scene, of describing emotion, or action, or what-have-you, reminds me anew of those different ways of accomplishing something. Having great examples helps me come up with my own recipes on how to mix things up, so to speak.
So I guess my advice here is to take the time to look at other art similar to your own to find various kinds of inspiration on how to make yours better.