Justification Alignment spacing sentence out too far

Hello, I was wondering if anyone had any advice or help on this. When using the justification alignment, the sentence becomes stretched to accommodate the words, creating an uncanny look for the paragraphs (I’m a writer, and this wouldn’t be fit for publication.) What can I do to fix this?

How are you setting the alignment?

Did you end your “paragraph” with Shift+Enter instead of Enter? You can tell this with View>Formatting Marks where the “terminators” are flagged with different symbols.