How can I stop other users on my cloud from changing my passeord

Have the other users create and use their own Apple ID instead of using your Apple ID.

Apple ID - create a new.      *

Apple ID – Create   -

Apple ID - Could Not Create or Could Not Set Up iCloud message.    *

You should not give anyone else your username and password.

reset your password immediately

Apple IDs are constructed around a “single user” model.

Multiple users sharing single AppleID “break” that model and result in an ever-growing mountain of issues.

One AppleID -> One Individual