How do i cancel applecare that i'm paying for monthly

To cancel monthly AppleCare, see the instructions in the "If you pay monthly or annually for your AppleCare plan" section of Cancel or change the payment method for your AppleCare plan - Apple Support

This is primarily a user-to-user support forum; other Apple users like you. If you have used the above instructions and still cannot cancel, see the following from that same support article:

If you finished setting up your account and you still don't see your plan, contact Apple Support.

To cancel payment

How to cancel monthly subscription payments