Open Facebook and go to your profile
Tap the menu icon
Go to Settings and privacy
Tap Settings
Open Privacy Checkup
Set who can see your future posts to Friends or Only me
Set who can see your friend 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
Review and limit past posts
Change story privacy to Friends or Custom
Set profile and cover photo privacy to Friends or Only me
Turn on timeline and tagging review
Set who can post on your timeline to Only me or Friends
Limit who can send you friend requests to Friends of friends
Review app and website permissions
Remove public contact info from your profile
Check your About section privacy settings
Use the audience selector before posting
Lock your profile if the option is available in your country