I think, the only thing you can do is create a new user.
Maybe the Mods would let you, but I don't think there's any way to do it.
I like the name, I see nothing wrong with it.
No no no!!!!!! You can't change your profile name!!!!!! You'll just confuse all of us ole farts on here!!!! We've got enough trouble remembering our own.........
If you really wish to change your user name, you have to take in consideration by checking to make sure it is not used by someone else. Once that's clear, then send a PM to one of the moderators, we in turn send a message to the administrators to have it changed.