i think i missed few steps when i am changing my username. I thought my new username and full name and home folder names are mismatched. Because of that i stuck on login screen after the restart. It is same on safe mode start up. What to do?
MacBook Pro 13″
If you have another administrator account on your Mac, you can change the user name from that side:
Change the name of your macOS user account and home folder - Apple Support
If you have another administrator account on your Mac, you can change the user name from that side:
Change the name of your macOS user account and home folder - Apple Support
Did you try to reset your account, as explained in this article?
If you forgot your Mac login password - Apple Support
I have reset my password few times using apple id. But it is not useful for login.
Stuck on login screen after changing my user name
