This is some solid advice right here.
I disagree strongly. If you're inclined to quit, try to do it. I had several false starts, where I was able to quit for months at a time, but eventually went back to it, usually in a social situation. I finally quit for good 23 years ago, but it seems obvious to me that I'm better off having quit intermittently for a total of two years or so than I would be had I smoked straight through these aborted attempts.