Twitter user name – change the case of the letter?

Hi. :)

I hope someone can help me with a little trivial topic.

Something has been bothering me since I created my Twitter account. My username is Everway9 with a capital E. But I prefer it to be with a lowercase e. Yes, trivial for everyone else … but important to me. :)

I tried to change it today in the configuration of my account, but it does not allow it. It says "The user name has already been taken", which is just because I'm not changing my username, but the first letter from uppercase to lowercase.

If someone can help me I would be very grateful.
SEMrush

Thank you very much in advance.

everway9. :)