i used to be called wofk.
but today when i tried to login with that name it told me my user name or password is wrong!
so i opened a new profile which im using now and i want the old one back!

i used to be a green belt. please help...

Try requesting a password change to be sent to your email registered to "wofk" here.
Next, PM any administrator (anyone with a bright red name) and provide any details you think is relevant to prove ownership of your account. Wait for the administrator to handle to problem.