You can make your chord voicings more interesting with dissonant notes, triads, and extended or partial chords. Something that is ostensibly “incorrect” can be “correct” if it suits your song’s particular needs.

You don’t necessarily have to go to this extreme, but there are plenty of lessons for musicians to learn from Frank Zappa. He and the Mothers of Invention were constantly using odd phrasings and voicings, and they weren’t afraid to be different. If you can take some of this ethos and incorporate it into your own music, you may get a a little bit closer to finding your own unique voice.