First, stop comparing yourself to others. That's a straight road to unhappiness.
Second, stop spending so much time on social media. Despite what some people say, it isn't all that helpful to most authors. (For nonfiction, I'd suppose it might be helpful if you already have something of a following, but if you don't and your goal is to sell books, it's a waste of time.)
Third, things like journals and coloring books appeal to people for an entirely different reason than most nonfiction books do (you didn't say what yours are, but it sounds like something that's meant to be informative). They are meant to appeal to something extremely broad in human nature, and they get five-star ratings because they don't have to hit many points to succeed. Informational nonfiction books usually have much more narrow niches.
Fourth, yeah, it's frustrating. I get it. I'm still on the zero traction end of things myself. But you just have to keep working at it, trying new things until you find something that works (mostly meaning marketing-wise), and building up your backlist. Being angry that other people are successful and you think you deserve that success, not them, is pure jealousy, and it's not going to get you anything good.
