Messing around with page breaks isn't going to help with that. At best you'll end up splitting paragraphs where there's an automatic page break - which could thoroughly mess up your document formatting - and still won't balance the pages, plus you'll make the document a nightmare for anyone to make subsequent edits. On top of that, merely opening the document on a computer using a different printer driver is liable to result in the page breaks being in the wrong places, including at the top of the next page - causing your document to have blank pages.

Some of your 'issue' is the result of you having Word's widow/orphan control applied to the paragraphs in question. Turning widow/orphan control off on the last paragraph of the first page in your screenshot will add an extra line of text to the first page but will leave the last line of that paragraph orphaned at the top of the next page.

Word is a word-processor, not a page layout program. If you want that level of control, use the appropriate software - but then you'll lose Word's word-processing flexibility.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]