A username (for me) should either show that there's something more about you -that you have interests beyond your current "on-line environ" - or just be professional and plain and say who you are.
It really comes down to a degree of how seriously you take yourself, or how pretentious, or if you like to have a little fun.
If you have just your name, then your pretension levels are probably quite low. You are just being who you are - nothing more, nothing less.
My username comes from the name of my favourite hamster. I took on his name after he died
He was a fab hamster, and the name was utterly inappropriate. He was soft, stupid utterly placid. I also like taking the name on for myself for oddly exactly the same reasons
The name originally comes from a book - Imajica by Clive Barker. The main character, Furie (or John Zacharias, or Gentle) is a womaniser, a cheat, a faker and generally a bit of an arse. Again, I like the fact it doesn't match me at all
The other source would be from Greek Mythology, where the Furie's were a race of warrior women.
Other than that, the surname Furie comes from the De Ferrier family, who were major protagonists in the Wars of the Roses.
So lots of meanings, and anyone could take any of them if they like to work out which I am. Of course, only I (and the few others I've told before) nkow about the hamster link
I also chose something which I knew would still mean a lot to me as I grew older. It's ambiguous enough not to be embarrassing as a normal name (unlike The Grape Wizard - which you'd feel silly about as a 30 year old man
), yet still intriguing enough and playful enough to be used happily.
I doubt that helped you pick anything at all, but at least you have an insight now