/3/ - 3DCG

>>975661
Looks like you applied subdivision.
If you haven't, and you're not using subdivision, there's a pretty obvious reason why it's bad topology. You've got loopcuts out the ass that look like they do fuck all. Good topo should be able to pull this off with a sizeable fraction of what you've got currently. Especially given how symmetrical it is.
Pic related is something I quickly whipped up. Start with the most very basic shape of it, with as little geo as possible, and then work your way up.
I don't think I used a single loopcut making the base shape (though I did use the knife tool). Best way I manage to do it is vertex by vertex. Start with the outline, make it a single face, turn it into quads using the knife tool, then inset and move one of the faces to make the area for the hole and delete that face. Or just cut a hole with the knife tool. Then use crease or reinfocement loops to get the shape you need when you subdivide. Using mirror is a real help.

Overall, it's just one of those things you start to intuit via practice. I'm by no means an expert though.