Missing acount

Hi. I uploadet an wordpress-page to my own domain a couple of years ago, and could log in true https://havlandet.kallinen.no/wp-admin/

But then i started using my domain on another site and didn′t think it true! So now i can′t access my page. The address now is https://havlandet.wordpress.com and my earlier login items do not work.

Anyone who can tell me how i get access to my page again so i can connect it with a new domain?

Also, i don′t think i have a backup for my site. I just wanna be able to log in to it again, but i don′t know how! I Can not provide a new password true wordpress.com either, because i dont have any of the secure questions they ask for since i uploaded my page on my own :/