I can’t access my iCloud email. It keeps saying my iCloud info is incorrect

Check ⤵️

If you can't connect or sign in to iCloud

If you can't connect or sign in to iCloud - Apple Support

If iCloud Mail isn't working

If iCloud Mail isn't working - Apple Support

Check your Apple ID via your email box, see this Apple article: If you forgot your Apple ID

If you forgot your Apple ID email address or phone number - Apple Support                  

OR see -> Having trouble signing in?

https://iforgot.apple.com/password/verify/appleid

See this Apple article: If you forgot your Apple ID password

If you forgot your Apple ID password - Apple Support

Then see this Apple article: What to do after you change your Apple ID or password

What to do after you change your Apple ID or password - Apple Support

Contact Apple for help with Apple ID account security

Contact Apple for help with Apple ID account security - Apple Support

BTW: You are sign in here .  .  .  with your Apple ID & Password (?).

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.

Device or computer? Hav you tried deleting the account from the Mail application, restarting, and then adding it back?

IOS

Mail – Setup on a device    -

OS

Remove email accounts in Mail on Mac - Apple Support

Add email accounts in Mail on Mac - Apple Support

Recently I deleted my iCloud. Can I get it back?

Can I reconnect my iCloud

If you deleted your Apple (iCloud) ID, you can't get it back.