I’m an advocate of tracking your food. Some people track their food for weight loss which is certainly helpful when you want to maintain a specific calorie range per day. It helps when you’re trying to figure out why you haven’t lost as much weight as expected (maybe that extra mochaccino each day wasn’t the best way to stay warm). It also helps to pinpoint why you’re feeling lousy as you might not put it together with what you’ve eaten.
One thing missing on most conventional food trackers is the correlation to your mood. It can be enormously helpful to be able to see that you’re drinking three cups of coffee in the afternoon because you’re feeling exhausted by 2PM or perhaps sugar affects your mood swings more than you think. Give it a try and see if there are foods you should be increasing, decreasing or avoiding entirely.