After my morning coffee I go for tea. The teine keeps me focus and u don't get stressed as caffeine can do to you plus tea still delicious even when it get cold
I do not drink tea and coffee, my body does not tolerate these drinks. I mostly drink water.
And mostly smoking calms me down. But maybe I was deceived and smoking is a habit.
I always make my favorite drink coffee before sitting down to play poker, without which I simply can't imagine life, it makes me relax and calm down. As one song says, coffee is my friend.