Username change possible for privacy?

[Zoidberg]

Hey, so I wanted to know if it would be possible for me to get a username change? When I chose my username, I used the name I was considering going by to see how it felt getting called that. I didn't realize it was going to fit and I was going to continue using it through and after socially transitioning. I'm currently out in my day-to-day life, but I'm no longer convinced I'll always want to be, and would prefer to make it a bit harder for people to find my personal info.

Edited to add: there is also at least one person who I have removed from my life who knows this username and I'd prefer not be able to find me.