I used to be a coffee/soft drink fanatic. I would drink, at least, 10 cups of coffee a day, and 3 or 4 Pepsis.
I quit cold turkey for many years, and have only allowed the coffee-mistress back in my life...to a limit of two 250 ml cups a day.
Ah, for the coffee years, she was a cruel mistress, but I don't miss her.