Unable to Login After Changing My Domain Name

Hi Team,

I changed my Salesforce My Domain name while learning the topic , but I didn’t update my login URL. Now, when I try to log in, I get the following error:

🔴 Error: This site can’t be reached – DNS_PROBE_FINISHED_NXDOMAIN

I am unable to access my org. Could you please help me with the following questions?

1. How can I recover access to my Salesforce org after changing the My Domain name?
2. Is there a way to reset or revert to the previous domain?
3. Can I access my org using a direct Salesforce login URL instead?
4. Is there a way for Salesforce Support to update my domain settings so I can log in again?
5. How long does it take for a new My Domain to be fully active?