Well my previous addiction wasn't with alcohol but I can assure you that this has been much harder to quit. I was able to justify my last quit with the other substance by saying, "well I still have dip" and honestly, it helped take my mind off things. This on the other hand is different. I don't have anything else to fall back on, and nicotine is a real bitch. The physical dependency along with the mind games so far really fucking suck, but I'm done paying for something to kill me. I think in the end it comes down to that for everyone. Once I reached that stage that I was really done with this shit, I am just too stubborn to give up on that.
This may not make a whole lot of sense since my mind is still kind of messed up lol, but I hope that answers what your asking.