Good luck....I quit back when I was 25 or so, having smoked since age 14. That's not as long as you, but the addiction had pretty much set in and I was smoking around 15 a day.
Didn't need patches or chewing gum or anything like that...I used a subtle mental trick to help me. Whereas before, smoking gave me a "hit" (that feeling on the back of your throat when the smoke hits it), I turned this around in my head so that the feeling of
not smoking was the "hit." And I know it sounds weird and a bit creepy, but that craving feeling can almost feel ever so slightly
orgasmic if you know what I mean...I've heard about heroin addicts going cold turkey talk about the same thing, and it's mentioned in the book "Trainspotting" as well. It's a slightly uncomfortable feeling but can also be pleasurable as well if you wrap your head around it.
So rejoice in not smoking. Twist your mind to enjoy the craving, and think about how fantastic it is to be a non-smoker now. This is a new phase in your life and it's kind of exciting isn't it? Make quitting a matter of pride. Think about how utterly disappointed and angry with yourself you'll be if you start again. Pretty soon you'll be seeing people smoking on the street and think "wow, look at those people....can't believe they're doing that."
Many people will tell you that the easiest part of quitting is the first two or three months. So be aware that there may come a time, three or so months from now, in which you think you're over it but the craving suddenly comes back. Someone told me to be ready for this and I was....when it came, I just shrugged it off.
These days I don't smoke at all (well maybe a quick toke on Christmas & New Years) and drink maybe 2 or 3 times a year (and really don't enjoy being drunk). Life is so much better.