It makes you feel bad, but obviously not bad enough to quit smoking. So let's discard this thinking strategy. It's self hypnosis of the not very useful kind. You can also change your internal voice to a cartoon character such as Minnie or Mickey Mouse or Donald Duck. Its hard to take an authoritarian Donald Duck seriously.
Smoking is often a dissociated activity.
That is to say you can smoke a cigarette without any conscious awareness of doing it. The part of you that wants to smoke takes you off and your consciousness is somewhere else, dissociated. This may be one of the benefits you get from smoking. Once during the coffee break on a Training course I was sitting in the hallway with a friend, smoking our cigarettes and separate from the group. I'd never thought of it that way before.