What Mr Turtle said - in spades.
Delete all the photos and personal data.
If any photos or other items are linked from a third party source like tinypic or imgur then get rid of the links.
You account is probably linked to an e-mail account.
I would close that account and open another one.
Do not underestimate just how insidious and nosy Facebook is.
Thanks for the hint about linking to the e-mail accounts. I don’t have a Facebook account, but have been tempted at times when friends have asked me to start one. I probably never will, but if I do, I’ll open and use a special e-mail account for it.