In three days, (the time it took to read CoC), but...
After 10 years of stuggling with doubts and concerns, I had a moment of clarity about a year before I read it, where I knew it was in all likelihood not the truth. I tried to "hang on", but just couldn't do it for long. I stopped attending meetings within 5 months.
CoC, (or any other other material, no matter how convincing), will not work unless someone is ready for the truth beforehand.
j