Pretty simple, start drinking half caffeine for a few weeks, SLOWLY get yourself down to 1 cup in the morning and 1 in the evening. Once you can successfully do that, switch your evening cup to decaf and still do half caf in the morning (you can buy half caf btw)

then eventually ur having 1 cup of half caffeine in the morning and youll be able to have it or not have it at your own regard

personally ive been drinking coffee forEVER and some days I will literally pouind it all day, some days i wont drink any at all. I dont know why but its never had an addictive effect on me, and i even have a pretty addictive personality (i consider myself somewhat addicted to reefer in the summertime cause I flip a shit when I go dry for more than a day or so. winter i smoke if i can but i dont care that much about weed in the winter cause theres a lot more important shit that i gotta take care of in winter)