Every one has given great advice. One thing I can add to it is that everyone needs to have alone time. When in a quit it is especially important. Sometimes it is an entire day. Other times it is just a minute. It will vary. Sometimes, for me, when I am feeling a little edgey I use Bacc Off or some other fake/no nicotine substitute. For me it helps.
So, I am going to third, fourth and I think fifth what others have said already. Quit for yourself. It has to be for yourself. Actual resentment will be non existent once you make the decision for yourself. It may mimic resentment, it is not. That is the Nicotine talking and trying to get you into it clutches again.
So. join up. Post a promise daily. It is odd how doing something so simple could cause a daily tranquility. Some days it is just a small breath of calmness and other days it is a boulder taken off of the shoulders of Atlas. Joining up will give you access to tons upon tons of information, help, short term distractions, bit(hing sections, brotherhood, understanding, help, strength, courage, determination, ACCOUNTABILITY.
Just for today, Self.