So far you're doing good. Keep it up. I was also a smoker for 20+ years. Two packs a day. Then I got my PV, and only had 3 analogs over the next 2 days. None since. I still get cravings though, but I know that a lot of it is mental, not physical. How do I know that? Because sometimes when I'm sitting at my computer desk, I find myself reaching for where I used to keep my smokes, without even thinking about it. Funny thing is, I'm using my e-cig when it happens!
Just be aware of the fact, that sometimes, your mind is out to get you.