Here is something that took me a long time to grasp, but the understanding has been extremely liberating, "emotional" eating IS normal, happy eating. You don't need to kill it with fire. It's no big deal. Maybe you'll be a little less hungry later. That's about it. Things don't get weird unless you forbid it or shame yourself for it. Then it becomes big and reactive.
The idea that you need to eat perfectly or else you're "bad" and will gain weight is total diet nonsense. The fear is irrational. Your body is so much smarter than that. It will naturally adjust appetite and energy if we let it. That "uh-oh, I've blown it" sentiment is far more problematic than eating some crackers when you're stressed, or cookies when you're bored, and then just getting on with it.
Another thing I've realized is that if I’ve been consistently well-fed for weeks and months, eating doesn't often occur to me as a thing to do when I'm bored, happy, or anxious. Restrict, or ignore hunger, and it zooms to the top of the list of coping mechanisms.
I like this post from Caroline Dooner:
She argues that eating is an inherently emotional activity, and that trying to make it one hundred percent logical and robotic is what causes food issues in the first place.