How do I resolve trailhead login Salesforce?

I am facing an issue. I was practicing something so I made a trailhead account. After the timeout logout, I didn't know the password. When I clicked the forgot password I received an email. After clicking that link there was a security question about which city you were born in. I never saved any city at all. Now please guide me. Is there any other way to login? how can I reset now where I don't know the answer?