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 friends list to Only me
Set Who can see your profile information to Friends or Only me
Set Who can send you friend requests to Friends of friends
Set Who can look you up using your phone number to Friends or Only me
Set Who can look you up using your email address to Friends or Only me
Turn off search engine linking to your profile
Review and limit past posts
Set story privacy to Friends or Custom
Limit who can comment on public posts
Review tagged posts before they appear on your profile
Turn on profile and post review settings
Remove or block unwanted followers
Check app and website permissions
Use two-factor authentication
Keep your profile photo and cover photo visibility limited if needed