Basic Formatting in Microsoft Word
Basic Concepts of Microsoft Word - from Shauna Kelly
Understanding Styles in Microsoft Word

I don't have an answer for you other than to learn Word. I doubt I would want to read what you are putting together, but perhaps you are trying to put something together that no one will want to read.

Full justification looks pretty but is hard to read. The spacing between lines is intended to increase the ability to quickly read it. Paragraphs are essential to understanding language.