The trick is to wait until you get a terrible flu.
You won’t feel like coffee, because you feel terrible.
You won’t notice the withdrawal symptoms, because the flu symptoms are the same but much worse.
Caffeine withdrawal takes only a week or so, so by the time the flu is gone, the addiction is as well.
Just (“just”) remember to not get that habitual cup of morning coffee on the first day you feel kinda OK again, that’s the only hard bit really.
Yes, I know it's not that hard, but lately I've been going through a period of low mood, and I really cannot stomach the idea of diving deeper into the Abyss for a couple weeks while my receptors downregulate. It's hard enough already as it is.