How do I change me phone number so I can reset my password

You need to change the phone number on your Apple ID, but you can't do that until you recover the password so you can sign in.

See if you can get an email option. Enter the Apple (iCloud) ID and click Forgot Password.

Apple ID - Manage            

Apple ID – Forgot Password            

Are you using a mobile number as your Apple ID? See Use your mobile phone number as your Apple ID https://support.apple.com/en-us/HT207944#change-appleid. See the heading Change your Apple ID to a different mobile phone number. After you change it, you should be able to change your password.

Apple ID password or phone passcode?

Apple ID password. Enter the Apple (iCloud) ID and click Forgot Password.

Apple ID - Manage            

Apple ID – Forgot Password            

Passcode.

Passcode - If you forgot the passcode for your iPhone or your device is disabled.      

how can i change my iphone password i for got it.