How can I create a new Apple ID and change from my old one
Got divorced and my Apple ID has our old anniversary in it, so I’d like to move on from it. How can I change
iPhone 11 Pro Max, iOS 13
See Change your Apple ID https://support.apple.com/en-us/HT202667.
And see What to do after you change your Apple ID or
Password https://support.apple.com/en-us/HT204071 (supplementary to what the fist link says)
Post back if you have questions about what you can do if your Apple ID (1) is a third-party apple ID or (2) ends in icloud.com, me.com, or mac.com.
And FYI, see iCloud: About your @icloud.com, @me.com, and @mac.com email addresses https://support.apple.com/en-us/HT201771