I am Slavic Catholic. It is an interesting thing to say using drugs is a sin. While gluttony of all forms is, did Christ not turn the water to wine? Anyway I do not think you are wrong. My experience took me through 99 negatives until 1 positive. However if we condemn it all as sin- people like me are left with only bad influences during that time- the living manifestations of demons: pharmaceutical companies and drug dealers. They are not hidden somewhere else, they are here among us. And once someone takes that path- the way back is terrifying and difficult.
I believe based on my own experience and others that I have known, certain psychedelic medicines can help some individuals recover from addictions.