To change your habits, it's easiest if there's something you can put in its place, something that you also like that is less bad for you. I told my doctor I could drink three liters of coffee a day, but then I'd be a wreck. Or, I could drink three liters of beer a day, but I wouldn't get anything done. Three liters of water would be best, of course, but I'm mostly a water drinker when I'm outdoors working, camping, or backpacking.
You see, I don't drink water at home because I'm thirsty. I drink in order to be putting something in my mouth. It's part of how I gave up smoking all those years ago. I'm a very oral person. I want something that gives me a punch of flavor or other stimulation when I take a slug of it. So, of all the things I might enjoy that I could imagine drinking, eating, or otherwise stuffing in my face, what is least bad for me?
Life is all about choices. Until I can find a better one, this is what works for me.