It’s my understanding you can’t change it. I don’t really like mine either but couldn’t get it changed.
Just put something in your tag line like “I was drunk when I came up with this moniker”, or “I was really stupid for trusting anyone in that NWO Bush family”, or “I surely do regret my choice of username”. We understand, we’ve all been suckered by politicians too.
Not true. Lots of Freepers have changed their original handles. Simply ask JimRob to do it, and he'll get it done.
The only downside, so I've heard, is that your posting history under your old handle gets zapped.