i actually just kicked my cola addiction and caffeine addiction. I'm not perfect i wish i could say all i drink now is water but that's not the case. i do try to drink water too though along with a koolaid mixed with stevia.
To get rid of coke i slowly weaned myself off. Started with 2 cans a day and every week lowered the amount down so i wouldn't get a headache. For me it took about a month to do. What helped was if i had a craving or went out to eat i would order root beer instead of coke which is caffeine free. I"m happy to report i am now coca cola free and i have no soda in the house whatsoever.
I do want to quit drinking the koolaid too but one thing at a time.