What to do: follow Tom's advice.
What NOT to do: if this is your first usage of FCPX don't...
... dump all my files into Final Cut Pro X.
Never a good plan to learn new software with a big real world (timed) project.
If you did allready edit a few just4fun projects for the trashcan, studied a few hours of tutorials, spend a day or two with an experienced FCPX editor, what you should NOT do ...
...dump all my files into Final Cut Pro X. ...
Before launching FCPX imagine what you expect for a good edit experience ... what meta-data do you need first hand? script numbers? lines of text? director notes? group of 'scenes'? A star-rating 1-5 system?
What about the follow-up steps - will the audio-dept ask for roles; which ones? Will the director, after version 24 go back to vers 2? Will there be an IT-version? ... etc etc
... based upon that wishlist, structure your project... keywords, collections, filters, auditions, snapshots, notes, ..
THEN launch FCPX, create that structures, then dump all your files ... right on onto selected keywords ...
And, sorry to talk to you as Mr Knowitall:
do NOT work without a smart backup-strategy ... what where how often?
Sheer experience: a backup in the same room as the working place is no backup ... 😉