In other words, your Google account name is yourYouTube channelname.
Skip ahead to steps 4 through 6 if this is the route you’d prefer to take.
Access Your YouTube controls
On the Web:Head to YouTube.com and sign into your account.
Click or tapyour user account iconin the top right of the screen and then clickSettingsfrom the dropdown menu.
On the App:TapMy channel.On the next tab, tapthegear iconbeside your name.
ClickOKwhen you’re done.
Tap thecheckmark iconin the top right of the screen to save it.
This will not only change your Google account name but also your YouTube name and channel name as well.
This is whereBrand accountscome in.
But moving your channel to its own brand account is the way around it.
Confirm to Complete the Move
tap the blueSelect desired accountbutton.
press the newly created (and empty)channel.