cheersIs it possible to change your youtube user name?No, sorry there is no way to change your account name once you have created it.
By 'doing it all again' do you mean just setting up an account? because that just takes 5 minutes. If you ment that you uploaded videos to that channel and you don't want to make all the videos again then you can download some of your videos onto your hard drive to upload them to your new channel. (Go to 'my videos' and some of your videos may have the option to download them.)
Tell your subscribers your changing to a new account if you have any.
Any more YT questions PM me.
