PDF files were not meant to be created from scratch or edited in such a way. You need to create the basic file with the layout you want in another application (like Word, or more professionally with InDesign or something like that) and then convert the file to PDF when done. Then if you want to edit it you go back to the original format, apply the edits and then generate a new PDF.
The problem is that there are no text boxes or flow in a PDF. Each time you edit, Acrobat looks over the page and tries to make boxes. There is no control over this. Once you have edited, your revised text might produce a different guess of boxes. So, indeed, wrong tool, wrong task. PDF editing is a desperate last resort only, for when the original is lost, and all the backups eaten by termites. If remaking a PDF is taking a long time, maybe we can help with that.
I see....I downloaded the Acrobat DC after a long discussion with an Adobe sales rep about the best Creative Cloud tool to create PDF marketing sheets from scratch (they informed me to use Acrobat DC, and the create from blank page option).
Sounds like you got a rep who failed to say the really important point: Acrobat is the ONLY tool to create PDF from scratch; it's the best tool there is, but it's not a good way to work. People just DON'T create PDF from scratch.
The beauty of PDF, and the reason it because so popular, is that you don't have to use any particular app to make PDFs. You just use what you already know. You can convert virtually anything to PDF. If you can do your job in Word, use Word. Publisher, use Publisher. Professional publishers would use Adobe Illustrator or Adobe InDesign, but these have a big learning curve.
You can convert TO PDF but don't convert back. Keep the original, edit the original, remake the PDF.