Consider whether any of those associated sites are still useful. You can enumerate these on Facebook itself, it shows you which sites have access to your account.
Secondly, make a list of these sites. Ask yourself: "if I lost access to these sites today, would I care?" - remove the ones you don't care about.
Lastly, separate each one from Facebook one-by-one. Some will be easy, log-in, set a password, unlink Facebook. Done. Some will probably require getting in contact with the site's support team.
Don't worry about doing this over night. Just rest in the knowledge that every step you take, is getting a bit more control over your data.
Eventually the list will shrink, and then you can start the mammoth task of doing the same things with:
Secondly, make a list of these sites. Ask yourself: "if I lost access to these sites today, would I care?" - remove the ones you don't care about.
Lastly, separate each one from Facebook one-by-one. Some will be easy, log-in, set a password, unlink Facebook. Done. Some will probably require getting in contact with the site's support team.
Don't worry about doing this over night. Just rest in the knowledge that every step you take, is getting a bit more control over your data.
Eventually the list will shrink, and then you can start the mammoth task of doing the same things with:
* Your post history
* Your likes
* Your check-ins
* Your reviews
* Your event history
* Your employment history
* Your photos
* Your wall posts
* etc.
Good luck!