Not proud to admit but I average 8 cups of coffee a day, my tolerance is through the roof. I also pound coffee in the morning because I'm so groggy from my night time meds. Can't be good for you! So I'm cutting back to six, then hopefully 4, then 2 strong cups. Weening seems like a good option.
Plus the price of coffee is outrageous, even the cheapo Folgers is $10 for the large.
I've gone through a similar process and unironically it was harder than stopping smoking weed or stopping drinking. There was a point where I was drinking 2 or more energy drinks a day and taking caffeine pills. At this point I'm down to 1 tea in the morning and maybe a coke or a soda later in the day.
Weening yourself down is by far the best bet. Going cold turkey will inevitably make you irritable as fuck and give you intense headaches as well. On top of being more or less dead to the world from lethargy for a week+. Don't be afraid to have a small maintenance dose to keep the headaches away if you're weening too quickly. This was my experience on cutting back though, I've heard of people who don't get the headaches
I believe in you comrade! Best of luck in your efforts