Open awareness meditation feels too easy to be "working"

Maybe you'll tell me that I shouldn't worry if it's doing anything but I'm not at that stage, I meditate for the benefits. My question is, is sitting doing nothing meditation? I'm paying attention to my thoughts almost 24/7 (immersed in them) and the rest of the time my body or my breath or other senses. Am I doing it correctly? How do I know if I'm progressing? I fell like I could meditate for hours with this method, though I would be thinking. Is there any benefit to that? It seems too good to be true.

Thank you