Possibly you have actually chosen that xXgOtHgUrL420Xx wasn't a smart choice for a username-- or possibly you're just searching for a.
How To Change Your Facebook Username
1. Log into Facebook https://en-gb.facebook.com/login/
2. Get to Account Settings.
Click the gear icon in the top-right of Facebook and choose Account Settings. In the left-hand column, select General. Find the Username field and click Edit.
3. Get in a new username.
Enter your new username and click Save Modifications.
Keep in mind:.
Facebook specifies that you can only change your username when, so select sensibly! Your employer might take a look at this someday.