in rehab i was the only non-alcoholic.
i identify as a polydrug addict.
started smoking weed every day at 16, and i really do consider it an addiction. also just did whatever drugs i could get my hands on.
at 19 got addicted to benzos.
about 22 i added alcohol to the mix- but not badly enough to affect my phd work somehow, but every day.
then at 25 i added heroin and for a while was using all 3 daily. my doctor was getting really concerned about my benzo and alcohol use (didn't mention the dark) and i preferred heroin anyway so managed to cut those down slowly enough not to give me issues the smack wouldn't mask. then cut out the weed too. so heroin was like my miracle drug cos it'd got me off these things i'd have problems with for years.
then at 30, having smoked crack regularly for a few years, i started smoking it daily. lost everything within less than a year and ended up prostituting myself.
during that period i was still on the gear and frequently taking benzos, pregabs and quetiapine but i wouldn't say i was addicted to those 3.
most of my using friends seem to have gone straight to hard drugs way earlier than me so skipped the intermediary addictions.
edit- i got basically forced into rehab at 32 and have had 2 short lapses with hard drugs but am now drinking in a manner i consider problematic, but not daily. did 2 years of mostly complete abstinence. it was hard as fuck. i have CPTSD and had a lot to work through. not exactly cured but my life is a lot better.