If you want to get off caffeine totally, slowly cut back over a period of several weeks and then once you get down to 1 cup or less of caffeinated coffee every few days, then stop buying caffeinated coffee and stop keeping it in the house, it's much easier to avoid drinking it if it's not in the house to begin with because you'd have to go out of your way to go to a café or store anytime you wanted coffee, sometimes it works for me because I'm personally lazy and don't feel like going out of my way to get things that aren't readily available in my apartment lol