Open Facebook and go to your profile
Tap the three dots next to Edit Profile
Select Profile and Tagging Settings or Privacy Settings
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 followers or following to Only me
Turn on Review posts you’re tagged in before the post appears on your profile
Turn on Review tags people add to your posts before the tags appear on Facebook
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 public search engine linking to your profile
Change past posts audience to Friends or Only me
Limit profile details like phone number, email, birthday, and hometown to Only me
Change profile picture and cover photo audience to Friends or Only me
Use the Privacy Checkup tool to review all settings
Remove or restrict followers if needed
Block people you do not want to view your profile