Hello Maria11Ana,
Thank you for posting in the Apple Support Communities and for reviewing the related article Require a password for App Store and iTunes purchases. From our understanding, you'd like to stop your Hulu subscription that's billed to Apple so that you can create a new Hulu account. We can help.
First, you can cancel a current Hulu subscription by taking these steps:
How to cancel a subscription from Apple
After your current subscription is canceled, we suggest getting in touch with Hulu to create a new Hulu account. You may be able to reach them here:
How to contact an app developer
We hope this information is useful. Kind regards.