You do have the ability to change your youtube Title.
you can do that here. I added Skenkee | Animator.
Your username as in youtube. com /username cannot be changed.
You can delete your username channel and make a new one with your Google+ , that is the only current way.
Just connect it to google +, it doesn`t delete your videos or anythingYeah, I changed it on here to my emcee name, which is what I would like for it to be on YouTube moving forward. That sucks if I can't though because the account will primarily be used for my music and all related types of videos. Guess I'll have to make a new YT account?