I was reasonably comfortable while I was on the Nicoderm 3-patch program. I thought about smoking but I didn't crave smoking in the sense that I was afraid I'd start smoking again.
At the end of the program, I started craving again, so I extended the program by about a month and a half by making a smaller and smaller patch size, cutting off 2 millimeter slivers. When the patch was falling off my arm in the shower, I stuck it on with waterproof tape.
They say cognitive-behavioral therapy can help. See if you can find CBT advice online.
Being on vacation is a good time to start, especially if there are enjoyable things you can keep busy with. Even being in a motel room near your home keeps you away from the things that trigger you to smoke.
Anxiety is a common withdrawal symptom. I have stress reduction advice in my recent answers. The best is actually the easiest - slow breathing. A therapist who has helped combat veterans suffering from PTSD says square breathing is helpful, and it's easy to remember. Breathe slowly to a count of 4 - in to 4, hold to 4, out to 4, hold to 4, etc.