To log in to your WordPress website add /admin to the domain in the address bar.
ie if your website is yourwebdomain.co.uk navigate to yourwebdomain.co.uk/admin
This will get you to the login page where you can enter your username and password and click [log in]
If you do not know your password click “Lost your password?” and follow the instructions at https://hoot.inclusivebytes.org/tutorials/how-do-i-reset-my-wordpress-password/