I'm in a similar place. I drink 1-2 cups of coffee a day, one in the morning and one in the early afternoon. I find it very valuable for increasing my attenti

I'm in a similar place. I drink 1-2 cups of coffee a day, one in the morning and one in the early afternoon. I find it very valuable for increasing my attention and focus during those periods of the day when I'm generally unfocused or tired. If I miss coffee for the day I will get very groggy and likely have a headache by the mid-afternoon the next day. So definitely one more for variance. One thing that's always frustrated me is that I have friends who will drink a coffee after dessert to stay awake for the drive home, then get to sleep two hours later. If I drink a cup of coffee I am effectively guaranteed to be up for the next six hours, even if I'm tired and unproductive for all of them.