So glad to see someone state the truth. I was addicted to cocaine for 20 years and finally stopped of my own volition and as you say, it certainly was not pleasant. What I learned is a junkie is a junkie! I started with cocaine, went onto  crack, ice, acid, mds, mushrooms, heroin, etc. It doesn't matter the designer drug of choice available today, it is that if one wants to become a drug addict, they will find whatever is available at the time to get them high. Until they are ready to quit, such as myself, nothing will stop them, sad but ultimately the true fact.