vxa and anyone else interested, there's another book I read straight after the Jason vale one called alcohol lied to me, by Craig beck.
It's very similar content but a bit more 'serious' in tone. It also contains lots of good info about nutrition and supplements to help you through early days.
I haven't read the Allen carr book so can't comment on that, but believe it is a similar philosophy and possibly also more serious in tone.
One thing I would say about Jason vale book is that if you can 'hear' his tone as exuberant and uber positive rather than patronising, it might help. I liked it because he seems so happy about his new life! And so 'why the F would anyone do this?!' And that attitude really resonated with me and still is. Rings through my ears when I'm around booze or boozers 
I guess it can come across as smug. Maybe I am sounding smug in my posts
certainly don't mean to! I just feel happy and grateful, and I really want so share anything I can that might help others on the same journey.
Jason V does say from the outset that you really have to be super open minded when you read it or it won't work. I didn't agree with 100% but probably 99%, and the other 1% I took in the spirit of good intentions or going to extremes to make a very valid point.
I would try to stick with it if you can. It might only take one magic nugget of info or philosophy to flip the switch and there are loads in there.
Good luck!