I too get very confused so I have several Offices that I can use. When I go to my monastery (I am a novice Benedictine Oblate and have 2 Benedictine monasteries within about 10 miles of me - I’m blessed!) I can do the Office because everything has been set up for us.
I also have a book named the Little Office of the Blessed Virgin Mary when is very nice and I use it occasionally. Extremely easy to use. And the Benedictines have publised a book called Work of God which has a shoter version of the Office but is still very good. In any case Compline is always the easiest to pray. But the alternative I like best is found at
universalis.com and you can prayer the Office right there on your computer with no having to go back and forth in a book. No confusion at all. And it’s helpful as a way to learn your way around the prayer book.
Hope this helps.