I stopped smoking on February 4th, 2004. I'd tried a number of times before but if I'm honest I was trying then because I thought I should, not because I wanted to. In 2004, I wanted to.
As one comedian said, it's really easy to stop smoking, I've stopped hundreds of times. The hard bit is staying stopped. I used a couple of motivational tools to help me stay stopped. The main one was this...
1. Are you going to smoke all your life? No.
2. OK, so if you're not going to smoke all your life, then you ARE going to stop and stay stopped at some point in your life.
3. OK, so now that you've stopped, if you smoke again today and then ultimately will stop properly, then all the discomfort, anger, annoyance and general shitty feeling that you've had over the last few days/weeks is all being wasted because you'll have to go through all of it again.
4. So picking up and smoking your next cigarette will cause you weeks of feeling like hell - it's not worth it.
The other was advice from a book I read, which described your addiction to nicotine like the addiction was a physical enemy (like a monster or Justin Beiber or something). Each time you crave a cigarette and beat it, the enemy becomes weaker. This helps turn any craving feeling into a positive, because it means you're winning the battle.
Great job for stopping - it will get easier and before you know it you won't care about it at all