by Lisa Brown on Just Publishing Advice site:

You may not have any challenge in expressing yourself through your writing, but there’s a common mistake that many writers make and sometimes, without noticing it. That is, repeating yourself.

Readers can detect repetitive words or phrases from a piece of writing.

It may slow down the way they internalize your message and in turn affect their response to your manuscript writing.

We repeat ourselves maybe because of focus on SEO rankings. Or it could be that we often use those particular words or phrases, over and over again.

Since repetition mostly occurs without us noticing it, the following are ways to help you reduce and even avoid repetition when writing your manuscript.