I see your URL as youtube.com/user/ANocturnalA and I am not sure what your youtube.com/c/????? name would be.
It is kind of confusing. I have multiple vanity URL's all pointing to the same channel...
The first one was my original username. The middle one was my YouTube custom URL. And the latter one was courtesy of being a Google Plus insider back in the day.
My URL-s currently:
The user one is like that from the start, and I don't even know if it can be changed, the second one I made with the youtube custom URL option once it got approved, but what boggles me is the last one, with the /channel/ prefix, I thought that one would also change to "NeonNightsChannel" but it obviously hasn't, and I'd like to know if it is possible to change via some YT option. Also the first one too, the username ANocturnalA, can that be changed?
Do you mean when you enter your channel name into the forum for YTtalk? If so, this link may help you set it up:
If you are asking about how to sign up for a YouTube custom URL, this support site has listed out the requirements:
Thanks, I already set up everything here on YTTalks, and I've also claimed a custom URL, the rest I described in the quote above.