That isn't true. But I can understand why you think that. I used to think stuff like that. I used to be obese, almost 60 lbs overweight. And back in those days, I had a whole list of self defeating lies I used to tell myself. But once I actually kicked myself in the but and tried, I proved myself wrong, and I never looked back.
I did hit around single digits last year. I wanted to go a little lower. But I slacked, and that's the only reason why. If I want to improve, I know what to do.
Try eating 2 meals per day instead and you'll see all the difference. It makes it A LOT easier to eat less calories. It also makes it A LOT easier to make proper adjustments as necessary. If you need to drop calories, just make an adjustment to one of your meals. It makes it EASY!!!
Try it and you will see.
Also, try paying attention to calories a bit. I'm just talking generally speaking however. You can track every day if you want, but it isn't necessary. Just count up once in a while to see how you're numbers are looking. If you aren't losing weight, check to see what calorie dense foods you might be eating that you could easily eliminate temporarily. When calories are dropped, the fat will start melting off.