One thing I never do, like ever, is say that I'm "doing well." I'm not doing anything. I'm just eating. There is no value judgment.
So, whether I'm eating fruits and vegetables at planned meal times, or I'm eating an abundance of cupcakes and candy, it's still just me eating. It's not good or bad. It's my choice that I own. Different choices produce different outcomes, so I get to choose the way I want to feel, but one isn't automatically better than the other. Saying that you're doing well implies that it's possible to do badly or to do something wrong based on how you eat. That's a shaky line of thinking. It's diet brain.
A couple of big meals doesn't mean you've done something wrong. Just like a string of small ones consumed in accordance with the hunger unicorns doesn't make you virtuous or solve any of life's problems. It's the value judgment that's problematic, not what you eat.
When you eat an enjoyable meal of exactly what you want and feel wonderful, or too much of something "meh" and don't like the feeling, that's just data. It can be a helpful reference for future choices, but it doesn't mean that you are good or bad, or that your eating is good or bad. A bigger meal just means it will be longer before you get hungry again. More sleep means it will be longer before you yawn. Less water means it will be longer before you pee. Do you walk around fretting about those bodily functions? Or attaching them to your self-worth? "I'm a terrible person. I'm blinking way too much today. I'll do better tomorrow."
Fullness is no different. It's just something that you observe. Do you like feeling very full all day? Eating when you're not hungry? Eating until you're physically uncomfortable? No? You can choose to do less of that. Do you like wearing a dress, heels, and a pearl necklace to scrub toilets and do laundry? No? You can choose comfortable clothes instead. Neither choice makes you a good person or a lazy slob. It's just a matter of what you prefer. Food choices are like that. Moralizing them ("I'm good" "I'm bad") complicates a really simple decision-making process, because emotional eaters who feel bad might be inclined to comfort themselves with more stories and more food (now's my chance, eating cuz you ate, starting tomorrow).
Avoiding judgment makes it easier to feel good regardless of what you eat, and to make choices based on simple facts instead of emotionally-loaded storytelling.