I quit it cold turkey, got the headaches for a couple days, and at the longest time, didn't do it for a whole week. I felt okay and did work fine, but when I ha

I quit it cold turkey, got the headaches for a couple days, and at the longest time, didn't do it for a whole week. I felt okay and did work fine, but when I had a cup after being off it for that week, it worked. It was an actual drug with an actual buzz, and I was insanely productive with it. However, it seemed to stay in my system a lot longer, so I'd have to drink it real early in the morning, or else a cup I drank at 8am would have me up until midnight. I've eventually switched back to having just 1 cup in the morning (as opposed to 3-4/day when I originally quit).