Stress has become a modern-day phenomenon, and there are very few of us who don't need a little bit of support when it comes to helping to unwind. Relaxing, simple activities like reading a great book, walking in the park, having a digital timeout, as well as creating an idyllic pre-bedtime ritual should be considered essential day-to-day practices that will all support a less stressed head.
Of course, less of the white, fried, and dyed foods, alcohol, and caffeine will also have a positive effect on your emotions too. But there are also foods that can positively encourage feel-good chemicals in the brain. Try adding them into your dishes and see if you don't feel more calm and collected already.