I used to stay up late watching videos or checking my phone, and I often felt tired the next morning. Over time, I learned how important good sleep is for my mental health. Now I follow a simple routine: I avoid caffeine in the evening, keep my bedroom dark, and go to bed at the same time every night. After a week of better sleep, my mood improved and I could focus more at work. A few healthy habits make a big difference when it comes to restful nights.