As I've been working on revisions of my current manuscript, I've noticed I have certain fall back cues that I use to convey emotion. I'm working hard to vary the words and descriptors of emotions so they don't appear repetitive.
I came across a great book that helps find different ways to convey emotion. It's The Emotion Thesaurus: A Writer's Guide to Character Expression by Angela Ackerman and Becca Puglisi. I bought my copy through Amazon.
As a side note, I also have a problem overusing the word "just." I'm told nearly every writer has a pet word or two that they overuse and have to scrub their manuscripts for before submitting them.