Mental craves kick in bad for some folks in the second week. I have had a really tough time this week and I am now at 40 days!!!!! Everyone is different. For me, it was really important to figure out WHY I was thinking about smoking right then. Sometimes it is just as simple missing your "normal" routine! Routines are "routine" for a reason (lol) does that make sense??? It is a bit "upsetting" to change it all around. I am trying to add new positive things to my life that I want to make "routine". Although I like the new changes, it still doesn't feel normal or routine yet. I have to remind myself that I can feel uncomfortable, but that doesn't mean that I want to go back to being a smoker. My mantra is "stay the course"!