Can't access WP admin on my new domain

Hi I have created a new domain in my bluehost account. I wanted to duplicate my original WP site template and contents to my new domain and then begin changing the content on the new domain as well as the original domain. I recently copied the ftp contents of my original site “abc.com” and pasted it into the domain file of the ftp for my new domain name “123.com” When I try to login to my admin panel for the new domain “123.com/wp-admin.php” it just redirects me to my original admin panel for my original site “abc.com.”

Please help! I would like to have 2 different sites with two different access admin areas.