Hi Flounder-
Your not too old! Now is your chance- take it and go, quit hard, follow this method. You have some great support, from guys who helped me quit, and others who I have seen really nail this quitting business down well. Make connections here, and learn all you can. Things are going to get a little wacky, just ride that out and read, read, read here at the site. The more you know about how the addiction works, the better you can fight it. Know your enemy, right? Congrats, even when it's hard, being truly free is amazingly worth it- more than you can imagine right now- it just keeps unfolding!
There's a link in my signature line with an article- that one helped me a lot.