I find it difficult guys please help me
i Find it difficult to change my Apple ID
iPhone XR
Are you trying to change the email address or change the Apple ID used with your phone? What happens when you try? Error message(s)?
Note the restrictions in the article.
What to do after you change your Apple ID or password - Apple Support I suggest doing this before you change your Apple ID or password.
Do you have access to another WiFi network where you can try? That has worked for several people.
Try a restart.
Restart your iPhone, iPad, or iPod touch
Try a forced restart.