Hi :)
So I don't necessarily have the answer you want, BUT WindowsCentral did do an article on changing your username:
https://www.windowscentral.com/how-c...witch-username
I guess you can do it from your phone, if you don't have access to a PC or don't want to use a PC. Just put your phone browser in 'desktop' mode and you should have access to the full webpage and your personal profile settings on the twitch website.
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