No, can't see your username...
Discussion
I apologise then. I don't know how Amethyst's profiles work. My username is "scoundrel", but if you can't see it then it doesn't matter.
Lol! I'm sorry I didn't laugh earlier.
I tried many clients but couldn't see your username in any.
Can you see it if you use a web client and search for your own npub?
In amethyst, you can click your profile picture on the top left, then choose to see your profile.
On your profile page, to the left of the follow button, there is the button to edit your profile.
You can try to edit your display name, maybe it was not transmitted to the relays when you did.