You normally can't. Only if you have a very good reason or if you are a VIP user, then you can ask theymos and only if he accepts, he will change your username.
A newbie here, dont know yet whos that theymos you mean... Hahahah
But I will explore:)
Thank you so much for the Info:)
VIP is a user rank which costs 50 BTC.
So in your case, it's probably better if you just create a new account.
50BTC...hehehehe I think I'll just go with my name.....
It is mostly like that this forum is saying 'your name (name in this page) is like your name when you were born.... You have it and you can't change it again unless you can afford it...
Hahahaha
A better advice I can deal with:) 😄😄Thank you so much 😄