@ketchuplover said
I seem to have forgotten how to archive past games or the site is making it too difficult for me. Please advise asap. Thank you.

Are all your completed games in one folder i.e. the archive folder?
If so, you can create up to 24 folders(win's draws, losses fot example) and move games into them thus removing the need for more than 1 page in your archive folder.
Another related point:-
I tried looking at my games in one of my folders and it said the folder was empty.
I knew it wasn't so I clicked "remove filters" and there they were.
I can't remember having to remove filters in the past so maybe something has changed