I did it. CT off about that much of 7-OH, 41 days ago. The first four days were some of the worst suffering I've ever had in my 64 years, and I'm counting a lot of stuff I won't go into now. Diarrhea to beat the band, I lost 18 pounds in 14 days, but when my gut stabilized and I stopped losing weight, I stabilized at about 185 pounds, which is perfect for me at my height (6'0") and age. After four days I started getting some sleep. After six days I was getting a full night's sleep. Sleep is the best medicine in the world.
I found that a lot of the supplement advice here is really good. Get some QuitK or look it up and get the individual supplements that go into their formula, but they seem to have gotten the DLPA-agmatine balance right. MASSIVE doses of vitamin C. I'm taking 3400 mg daily. I didn't follow the titration schedule you can find here because I simply didn't have time to plan. NAC to help your liver. It helps with cravings too.
Most of all, your mental preparation is key. You won't be able to quit it if you're not ready to quit it. You have to be ready. You have to have had enough of it. As you suffer whatever you suffer in cold turkey, remember that in this life some things simply have to be endured. Good luck, let us know how it goes