I never say that I'm on a diet. I always say "it's a healthy lifestyle change" I don't see the point of diets. I would rather just eat healthy and enjoy what I'm eating rather than call it a diet. Just never made sense to me.
I count calories on myfitnesspal but I don't get that upset if I'm over my limit for the day. I usually only count breakfast and lunch and eat til I'm full for dinner. I do get obsessive if I track every little thing. By tracking just breakfast and lunch I get a general idea of what I'll have for dinner. And sometimes I track dinner after I already ate it and I'm usually never too far over the cals anyways