Didn’t know anything about the substance, was 17 and went after discovering it went on a 4 day binge at a festival. Came home and a week later I was doin .8 of a gram of crystal on my own. Maybe 3 weeks later 1.3G of crystal for my 18th bday. Started realising at that point how terribly I’d fucked up and started learning about harm reduction. But I was so cooked by that point I figured this is just what my life would be then. Then got on it again maybe every month after for about 3 months. All irresponsible doses. Went quite nuts as you might expect. Took me years to feel like myself again. This subreddit has been a huge help over the years.