Like everyone else has said, keep at it. You will succeed. I smoked a pack a day for over 45 years. I tried to quit analogs three years ago using e-cigs as a substitute. At that time, what was mostly available were the analog look-a-likes. They produced some vapor that quickly reduced to almost none. They were fiddley (high maintenance) and I was going through cartridges, atomizers and batteries several times a day. In the end analogs were easier to carry and use. Attempt failed. At the beginning of this year (2013) a couple of co-workers showed up using APVs, in this case, a 650mah eGo-C battery mated to a Kanger T3 clearomizer. I saw lots of vapor and it held enough juice to last the whole day at work. I decided to try e-cigs again on March 16, this time using their set up (and it was only $35). By the end of the first week, I had finished my open pack of analogs and I haven't been back. I've spent some money on additional batteries, backup clearomizers, and juice. But, I'm still ahead of the game. Cost avoided in analogs not smoked is up to $665. And since my wife tried with me, and succeeded too, our cost avoided is over $1300 in just three months.
It is now easier to vape than smoke. It tastes better. My smoker's cough is gone, and no more headaches. I'm off analogs for good. You can be too.