Open Facebook and go to your profile
Tap the menu icon
Go to Settings & privacy
Tap Settings
Open Privacy Checkup
Set Who can see your future posts to Friends or Only me
Set Who can see your friends list to Only me
Set Who can look you up using your email address to Friends or Only me
Set Who can look you up using your phone number to Friends or Only me
Turn off search engine linking to your profile
Go to Profile and Tagging settings
Set who can post on your profile to Only me or Friends
Set who can see posts you are tagged in to Friends or Only me
Review and limit past posts
Remove public profile details you do not want visible
Change profile photo and cover photo audience if needed
Turn on timeline and tag review
Check app and website permissions and remove unnecessary access
Review story privacy settings
Block or restrict unwanted people if needed