It been a long time since i go through this forum, problem is not only i forgot the password, i completely forgot about my username. And that means i can't even recover password, is there any admin that can help me?

I can help assist you with recovering your account.

What was the email address you had associated with your account?
(Just need the part of the email before the @ sign, without the domain.)

[snip]

The username associated with that is: PhongponTH

You should be able to use that together with your email to request a new password and recover your account.