Maybe its because there is a little more pressure on to do it for real this time.

I gave up smoking just over 10 years ago. I was thinking to myself yesterday, or the day before that i never thought i'd be able to kick the habit, but amazingly i did. Now I positively hate the smell of cigarettes, but it took a good 5 - 7 years before i thought that way.

BTW,

none of the arguments that the dope heads put forward for turning a blind eye to my lads canabis adventures persuaded me that it would ever be a 'good' thing, it was always not an option.

Good luck Paul, hope you succeed....