You know, there was a time where I actually managed to quit it all. But then I was back on my bullshit full force. Coffee, tea, energy drinks, caffeine pills. In the off chance that I over did it in kickboxing or kettlebell exercises, even my pain relievers had caffeine in them.
Kicking caffeine is very much so a life style change and not just a diet change. Honestly, switching to tea is not pleasant but if you condition yourself into liking it, you might find yourself enjoying it unironically.
energy drinks -> yerba mate -> tea ->green tea ->decaf tea
This is honestly a pretty reasonable path.
Do you by any chance, use coffee as sort of a makeshift anti-depressant and mood stabilizer? If that is the case, you will notice that you will be going through a catty period. But honestly, there will come a time where you normalize a bit. Caffeine is one of the most used and abused stimulants out there. If you can cut back to even a cup of coffee a day, that would be much better for you. Honestly, if you need to be productive and caffeine is your productivity-life hack, a caffeine holiday and gradual return to a sensible amount will actually work in your benefit.
Good luck. It can and probably will be a miserable experience. Also, avoid "coffee culture" people. They'll just tell you that coffee is "better than meth" and will just further normalize drinking an entire pot in a day.
Shit, are you dehydrated all the time too? Honestly, getting into the habit of just drinking copious amounts of water and changing your socks daily are just little things that sort of nudge you to "being your better self". If you have some fancy Ninja-mega dick coffee maker, might be worth unplugging it and downgrading to something way shitter too, to discourage programming a machine to brew a pot each morning, etc etc. So much of it is in your routine and habits. Climb out of the rut, rather than doubling down and enforcing it into a trench.