When I was in high school, I always had major anxiety issues. I realized later in life that it was my excessive amount of caffeine I was ingesting on a daily basis.

I mostly cut all forms of caffeine completely out of my diet since January. As as long as I get 6 hours of sleep or more, I find that I can focus better, I have energy throughout the whole day, and the sleep I do get feels like I'm more rested.

Even if I got the same hours of sleep every night, I had a hard time getting up in the morning with caffeine in my daily diet.