Can’t get on admin panel

I am just getting started here trying to move from wordpress.com to www.remarpro.com.

I’m hosting through godaddy.

I can’t for the life of me figure out how to find my admin panel. I feel like once i find it everything will be fine, but just can’t get to it.

I followed the advice from wordpress for dummies to go to https://www.mydomainname.com/wp-login.php. They said a login page will come up but all I get is my old wordpress.com site with a 404 error message on it. I’ve stopped forwarding from my domain name to my wordpress.com blog. I’ve also tried logging out of worpress.com and trying all this.

I really have no idea and for some reason can’t find any info on what my problem might be. I’ve scoured the forums and codex and google search for hours trying to figure it out.

please help!
thanks!!