I think you be so repulsed once you find out what all the ingredients of a cigarette are, you will be completely repulsed by them; therefore, even the thought will make you sick.
Quitting is hard. Have you tried substituting certain beverages like coffee or tea for cigarettes?
I will do my best to reply with an educated, humble and honest answer. Ultimately, it is up to you whether you want to listen to my advice or ignore it completely. Sometimes, my advice may be wrong; occasionally, it will be right. Regardless, I want to do my best to give people answers they are seeking.