Everyone logs onto my wp admin but I can’t

Hello guys! I am going nuts with the following problem.

I had a domain on a host but never had a site there. I changed the domain to the new host service. Installed WP without problems, made all the DNS setups, etc. Everything is OK, but when I try to access the https://www.xxxxxx/wp-admin or https://www.xxxxxx/wp-login.php i get the 404 Error.

The weird part is that everyone else access the wp-admin. No problems, including me on the 4g on my smartphone.

When i tracert my domain, it says that its on my old host>
when anyone else tracert or ping, it says that its on hostgator.

Anyone have any ideas what might be happening?

Thank you so much in advance and sorry my english, it is not my first language.