How do I change my username?

[Pocky Flavoured Secks]

I forgot and I need assistance

[Kimura Amari]

Click on the My Gaia Tab, then go to the profile tab and select Preferences from the drop down list. If you look under all the account settings there's a little sentence about items that haven't been migrated to the new system with a link highlighted in blue. Click that and you can change your name.