.com .org admin login confusion

[ Moderator note: Moved to How-To and Troubleshooting. That’s not what Requests and Feedback is for. ]

Hello,

I created a website with wordpress.COM BUT then decided to use wordpress.ORG to self-host. So I installed WP, WAMP etc.

I keep finding the admin login page to .COM but how do I find the admin login page for .ORG?

On the support forum page says,
Begin by logging into the “administration area” or the back end of your website. Visit your site’s login page by placing “wp-admin” after your domain name (e.g. http://example.com/wp-admin). You can also place “login” after your domain as of WordPress 3.4. Some themes provide a “login” link or form on the front end as well. Now log into WordPress using your username and password.

BUT I keep logging onto the .COM site!
———

and finnishwaterforum.wordpress.com the .com site
what would be the domain name for the .org?
If I put localhost/wordpress
it only shows the site for .ORG but cannot edit at all.

Thanks in advance!

Jini