Welcome aboard Mick!
You have tons of quitting experience and support here. We all want you to suceed.
We have all quit and know how tough it is. But, we are all living proof that it can be done. Your addiction is no different that ours is, you can stop using too!
Get phone numbers, veterans and newbies. Your quit group will become your brothers and sisters, you will watch their backs just as they will watch yours. Get as many numbers as you can out of your quit group. You will need support when the going gets tough. Texting saved my butt many times!
When you get angry, rant in rave on this site. Use the chat or post on the boards. Don't take it out on you family. They don't deserve it, they haven't been putting the crap in your mouth all these years but have had to deal with your addiction. Don't make them suffer through your quit. We all know what you are going through, we can handle you rants and raves.
Last bit of advice, read, read and read some more! This site is full of good advice and inspiration. When you feel the nic bitch whispering in your ear, get on this site and read!
The choice is yours and yours alone. No one or nothing can make you use.
You can do this!