It sounds OK, but it sounds like your that kind of person who doesn't give a f*** about anyone or anything. If that's what you're going for then keep it.

No, it sounds like the self given nickname of a pretentious tosser. The sort of person who wants to be called Ace but everyone else calls them Ace Hole. (yes, I nicked that, I didn't make it up myself)

If it describes you then definetly keep it as a nickname :)

no. really just... no