It's not really possible to unmerge. It seems you also had a bunch of game registrations on the forum profile you now used.
To do what you want you simply have to scrap your current account and create a new one (you can change the email on this Paradox account if you want to free it for the new account). This will however result in you losing your game registrations that you obviously did for Jmes Snowscoran at some point.
To do what you want you simply have to scrap your current account and create a new one (you can change the email on this Paradox account if you want to free it for the new account). This will however result in you losing your game registrations that you obviously did for Jmes Snowscoran at some point.