I'm an executive coach and have never quit smoking but I thought I would give you helpful ways on how to accomplish your very noble goal! For the record, I have read (and witnessed) that nicotine is a very powerful addiction and you will need to arm yourself with ways to beat that addiction.
Right now I can tell you are super committed - the tricky times will be when you are tired, frustrated, have low committment (like after a cocktail or around someone who is smoking), etc. Make a plan for those vulnerable times, for example: think about when was your favorite time to smoke and pick something (that is a reward for you) you will do to replace that: maybe go for a walk with your kids, look on-line for a fun hobby you can take up, dive into your family picture project.
Also get a support buddy that you will report to every day who can listen to your good days & bad days, etc and encourage you - tell you how proud they are of you!
Another idea is to think of something that would be a negative reinforcement: like if you smoke, you will have to write a check for $500 to a charity that you don't believe in...
I beleive you won't smoke again, but if you fall off the wagon, forgive yourself & get back on!!
Congratulations!!