As writers we all have our own style and part of that is our use of words. We all have our favorite, which we tend to overuse. One I have to watch out for in my writing is “massive.” I don’t know what I like that word so much, but it tends to be what comes to mind first.
Always check your manuscript for over-used words and phrases, not only your personal favorites but common phrases such as: so, just, in order to, therefore, however, or any of your personal favorites.
It’s also easy to fall in love with a newly discovered word, then use it so much it annoys your readers. Remember the “spice analogy” for big, $5 words: A pinch of cayenne may be just what your stew needs, but over-doing it is going to backfire and be more of a distraction than story “flavor enhancer.”