I used to pop in and out of Charliecat's fag threads, try and quit, disappear cos I felt crap for failing... Tried so many times, complete nightmare. Even when I stopped I kind of knew I'd start again.
Then in the summer, I had a nasty throat infection and didn't want to smoke. This has happened before and as soon as the pain went a little I'd be back there puffing. But this time, for some unknown reason, I just didn't start again. I hadn't planned to stop, I just did. I haven't had a craving since and its now 5 months (longest before was more like 5 days). I've been on big boozy nights out, been deadly worried, been fed up, been dead bored, tired, happy...all those things, excuses that would always drive me back, yet I haven't.
I think its like people say, eventually, if you try often enough, one attempt you will make it and it may be easier than you thought.
I hope this comes across as encouraging. Its meant to say, keep trying, one day you will do it . Don't give up giving up (nicked from somewhere I know!)