STEP 1: Tap the Ellipses on the Left Sidebar
STEP 2: Click Settings & Privacy
Click the Settings & Privacy option, which is typically the first-listed option located below your profile banner. A sub-menu should open, revealing new options. Click on Settings to open the Settings & Privacy Page.
STEP 3: Click on Your Facebook Information
Click on Your Facebook information on the left-side options panel of your screen. Navigate to where it says Deactivation and deletion in the list of options.
STEP 4: Deactivation and Deletion
Navigate to where it says View next to Deactivation and deletion, and click this option.
STEP 5: Permanently Delete Account
Click Delete account on the bottom right-hand corner of your screen.