I have only been clean for 6 days so far but I will say without a doubt that I am happier. I took about the same amount as you for 6 years and I quit ct and with the help of the Thomas recipe had very minimal withdrawal. It also helps to stay on the forum and read about other people and their success. Best of luck to you in your decision :)
Hi, welcome to the forum! Stick around.. You'll hear stories from many people who are much happier now. The biggest change has been that I FEEL real emotions now. My life is IN COLOR now instead of black & white.. Even the "bad" emotions feel good when you haven't felt anything for so long.
I hope you find the answers you seek and decide to quit :) Best of luck..