password issues in security and privacy sitting

Does the user name and password work on other System Preferences items? Can you unlock System Preferences/Users & Groups using the same user name and password? Log into your user account?

If necessary, try resetting your user password. Then restart the computer and see if you can log in.

User Password Reset.   

User Password Reset (2).         

User Password Reset – Apple ID.    

Hello there FATIMA18T,

Thanks for reaching out. We'd like to see how we can help with your login issue with your Apple ID. We understand having access to your info is important, so let's get started.

First, we'd like you to review this great guide we have that goes over easy to follow steps when you have issues logging into your Apple ID or iCloud account.

If you can't connect or sign in to iCloud

If you continue to have issues, let us know.

Take care.