I am looking to stop, too. It makes me sit and over-analyze what people are saying and what they *have said* to me. And I think that is the paranoia kicking in. (My form of it, anyways).
It's a huge excuse not to do anything for me, too. My wife and I always seems to buy more, even though we always agree that we both want to quit. (The "we will stop after this bag" syndrome).
I really want this time to stick. I spent most of my life sober and would really like to know what it's like again. I am ready. I didn't start smoking until just a few years ago. And I even started it right before I met my wife and haven't quit since after we got married, so techinically we don't know each other as "two sober people". How scary is that?