Can I change my email on my ps4 account?
How to Change PSN Email Address on PS4 (Best Method)
How do I change my Sign-in ID? Go to [Settings] > [Account Management] > [Account Information] > [Sign-in ID] and enter your password. Enter your new Sign-in ID (Email Address) and select 'Confirm'. A link will be sent to the new Sign-in ID (email address).