I can-t login to my account

https://screenshot.it.sftcdn.net/it/...01-700x416.jpg
I know the pin but it does not login. I tried the system recovery but it did not work and I hope I didn-t delete anything by doing that.
This problem started because I wanted to change my account name
C:\Users\name\Desktop
C:\Users\name2\Desktop
and I did that by following these istructions
Rename user account folder
and
Advanced User Accounts control panel
the Managing User Account names from Control Panel dind-t work

now I-m in a temporary account I think
here I can find my original username
C:\Users
and then the name I wanted to change it with.

I-m in trouble please help me!!

As you found out, you can't change usernames that way. If you want to change the name of the folder under \Users, the only safe way to do it is to create a new LOCAL account with the username that you want, then change that account to a Microsoft Account login after it is created and copy all the old user's data files to the new user created.

Your best bet is to do option 4 here:
https://www.tenforums.com/tutorials/...a.html#option4

Once you are in the built-in administrator account, create a temporary LOCAL account with a temporary username, and make sure to change that account to an administrator.

Log in to the temporary local account, copy all the data that you want to keep from the other user(s) folders. Delete the other user accounts that are messed up, delete any leftover user folders under \Users. Once you get all that done, then create a LOCAL user account with the user name you want, change it to administrator, log in, change it to a Microsoft Account login, copy all the data back, then delete the temp account - or leave the temporary account created as a backup login in case something like this happens again.

I dind-t understand anything of what you said. I just want my old account back. How do I do that_(question mark)

UserUser said:

I dind-t understand anything of what you said. I just want my old account back. How do I do that_(question mark)

You can't. You broke it.

I dind-t break it I can see it, the folder is still there and the files too. Just please tell me what to do.

can I create a new account and then transfer the staff I had in the old one there_ And how do I do that_

UserUser said:

can I create a new account and then transfer the staff I had in the old one there_ And how do I do that_

Option3:
https://www.tenforums.com/tutorials/...a.html#option3

Don't forget to make it an administrator:
Account Type - Change in Windows 10