I started smoking at the age of 10. I was handed sample paks of cigs on NUMEROUS occasions in downtown Chicago. I quit when my wife got preg with our first child. I had several relapses ( alcohol related ) but now don't even think about it. It was a hell of a journey and I do not envy anyone who trys to quit. I will say though, that I am proud and supportive of anyone who does try. It's noteasy and IMO there are no easy ways, but the end result is soooo worth it.
If I could offer any advise it would be this....start working out diligently and eating better. You will quickly feel and look better and this will give you the strength to continue.