How do you log out of your account because I'm not a starter and I have no clue how to do it?

If you want to make a NEW account(super fresh) or RoK there only one thing you can do really. Install an emulator then install rok then bind that account to your gmail/fb (fb better can use anywhere ios, android pc). After that just connect to your account using that gmail/fb in your device.

You cant make a new one using your own phone cuz the game remembers your phone unless you factory reset your phone to change its ID, which is a pain in the butt.

When you login and get to the page with "cloud saving" as the title, go down to the bottom of the page and there will be a button that says "logout". You will need to press that.