Feel ashamed
We need to nix on the SHAME. That's what got us fat to begin with. Speaking for myself anyway. I have had some white knuckle moments when I wanted to eat so bad, and guess what - I did! I made a deal with myself that if I've got my food in for the day, but I'm still hungry at night, I can eat as long as it's a normal serving of protein. I can eat two scrambled eggs with a slice of cheddar cheese! That's a "normal serving" for me. So what! It's "extra calories" but the right kind of calories - protein - tastes good, feeds the need.
Also -- Sometimes I am full on 2/3 a cup, sometimes I can eat more if I'm hungry. The more "liquid" the food is, such as yogurt, the easier and faster it goes down without that ugly "too full" feeling. I can eat more than I think sometimes, not as much as I'd like at other times. But heck, how can I not lose weight on 800-1200 cals a day? And, if I "cheat" sometimes and eat something I shouldn't, big deal. On average, I can't get around this surgery by getting myself in much trouble. At least not for several months. And then, I hope the good choices will be such a habit I won't find the need to eat around the surgery. So you had a taco! So chalk it up to experience and move on!