i would like to change my username to something else, how can i do that?
by asking here and waiting for an admin.
also, fun fact, when you create a new thread like this one, on the right there are suggestions of similar threads.
you could also have used any of those - or checked how they worked out. just saying 
With Jodi gone, it looks like it could be @colin (judging from this other request solved a few days ago)
I can do that. What name would you like?