I have just recently started counting calories because my weight loss had slowed a lot so I started tracking the calories, fat, protein, and carbs that I was taking in to make sure I hadn't gotten too loosey goosey with stuff. It helped me see where my portions had gotten a little off. Also made me realize how many "little" snacks I was having and how fast they can add up
I do try to spread my calories and carb intake throughout the day. For me, having the majority of my carbs and calories at one time does not work.
Marie