Ciggarettes

Are ciggarettes more of a mind need, or is it actually something people really need, I am kinda confused, I have been smoking for 5 years (guilty) but why is it so hard to just let it go, I mean reality all I am doing is putting a little tube into my mouth sucking smoke in and letting it out, Is it the fact that I am used to doing something with one of my hands, I have tried the patches, They are crap I might add. Tried chewing gum but I still end up smoking even with a piece of gum in my mouth. The only thing I have next is maybe trying chantix.