I want to change my iPad dress. I have been hacked

The IP Address of the router is managed by your internet provider, not Apple. All IP addresses on devices behind the router are managed by your router and are local addresses only.

Jazzypage wrote:

I live in a senior living complex where all the Internet is attached to one router I believe it’s a router and Apparently I don’t know how to do that either

You were not hacked by your IP Address. Every device behind the router has a local address that is not visible beyond the router. It is likely that your account was compromised by someone gaining access to your password. This is common with phishing attempts:

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Please Contact  Apple Support as we can't do that here.