Welcome to the Roku Community, @Ahole!
Thanks for reaching out. No worries! We'd be happy to help you find the best resolution to your concern.
If I understand your concern correctly, are you referring to your Paramount Plus account? If so, do you want to log into your new account? If so, we highly recommend coordinating this directly with Paramount Plus Support for further assistance, as they manage their own app on the Roku streaming platform independently.
If your subscription is within Roku, we also suggest cancelling it first before you make changes to your existing account. You may refer to our support article related to this for more information: How to turn off auto-renew and cancel a subscription
We hope you find this information helpful.
Best regards,
Carly
Carly Y.
Roku Community Moderator