Need help @ Warsong

I tried to switch from Neltharion to Warsong about 20 minutes ago but now i am stuck in character creation in Warsong. When i enter the game and login it just throws me in character creator. When i click on finish the creation i get a response that says that i need to switch to another realm, however there is no way to do that. That is why i need your help so that you can explain to me how to switch from Warsong back to Neltharion. I tried to change realmlist but it didnt help so please help me asap.
Ty in forward :)

Ok try doing this,

Go to your Client and open up the folder that it is installed at.

Then go into WTF folder, you will see a file called Config or Config.wtf

Open that file with notepad, then at SET realmName "Warsong [PvP only]" change it to SET realmName "Neltharion"

Then save the file.

Hopefully that should help :)