The instructions

1.Click on the word "Account" on the top right hand corner.

2Click on the word "Privacy Settings".
3.Make your sharing "Friends only".
4.Edit your settings for applications (delete all the applications you do not use anymore).
5.Try not to put your school, workplace, adress ,credit card information or contact number on Facebook as if your account gets hacked, the hacker will know all of the above.