Full manuscript formatting ..help!

I lost my main document. Can you say cry?
I went to an older version and reuploaded it back into scrivener from a pdf file.
All formatting is lost.
I reset all formatting back to the basics.
Now I’m proofreading back in a pdf again.
The paragraphs have no indenting and all the spacing is also off.
I set it to default through the whole document but it’s showing strange things.
How can I format the entire document which is ALREADY INSIDE SCRIVENER for paragraph formatting and spacing?
I’m still a beginner with this software so please give clear directions. Thanks!