Well am here, 18 months, the next significant milestone for me since the end of May earlier in the year when I actually reached my 1 year quit.
Do I think of cigs - no not really, can't say that I have in a long time and even when I do it's a passing thought and not a massive crave. Although alcohol for me is a real challenge especially when smokers are around so need to continue to be aware but at least I'm still quit - truly if I can do it anyone can.
The secret - for me, I really wanted to quit this time, not like the previous times when I wanted to quit but not if it took any willpower from me. It was hard and easy, I just had to live each day and each day it got easier. A full cycle around the sun and I've reprogrammed most associations but there are still a few specials waiting in the future - so have a weary eye to the tiny nicodemon that still exists.
So if you are just starting out keep going, it is worth it and when the crave comes do anything but give in, each crave faced is another one conquered - you'll never have to do it again. Every day it gets a little easier until you need to read day 1 to remember - so to you all - you come too.