Before you can make any changes to your site, you will need to log in. The login for your site is typically found at the following URL - http://your-wordpress-site.com/wp-admin. Obviously, replace
your-wordpress-site.com with your actual domain name.
There are exceptions to this of course. For instance, your WordPress setup maybe installed in a subdirectory. For most standard setups though, you’ll find the above URL should work.