No. There is a difference between a page break and a paragraph break. Write your story using standard paragraph breaks. Indent them as necessary. What some newbies do is to break up the actual manuscript into pages and pages. (. If they think their book is 32 pages, they turn in 32 sheets of paper with their story on it to the publisher.) Typical manuscripts don’t do this. The story is written according to standard paragraph forms (unless its poetry or something, in which case poetry formats like stanzas are used) and the page breaks (when published) are not indicated.