Good luck guys.
I'm not in the mood for stopping at the moment, but the only times I've successfully quit is when I actually wanted to. Stopping because I thought I ought to, or because someone else thought I ought to and I agreed, etc, etc, have never worked for me. All the various aids to quit are just that - aids. The actual thing is willpower (and, for me, not wanting something other myself having control over me). You'll be very lucky to sustain that willpower if you don't really believe in the original decision to stop.
When I've really wanted to stop, it wasn't painless but it was a lot easier than I was expecting. When I've tried to stop because I thought I should, it was agony and I always failed.
I think the slipping back into it 12 months later or whatever is because I forget about the original motivation to stop and can't re-awaken it.
Funnily enough, I think that if the hefty "social-pariah" attitude and then resulting legislation hadn't arisen in the UK over the last few years then I'd actually be smoking a lot less at the moment, might even gone through another "quitting" stint.
The only advice I can give is that I'd recommend keeping your "quitting" as quiet as possible -less pressure if you haven't got well-meaning non-smokers asking you how you're doing all the time (others seem to cope with it, but it always p1sses me off :lol:)