Age 17, finished year 12 and was ready for the world. I first got stoned with an older (already pot experienced mate). We were picked up hitching by an older smooth looking dude who blew our minds with Tai Buddha. He gave us a stick on dropping us at our doorstep.... so it was quite a shock to learn sometime later that the dude was no other than the notorious Mr Asia, responsible for most of NZ and Australia's imported pot at the time, and later for his involvement in several ghastly killings! 8(
First used DOM, then LSD at 19, 2 years into a 4 year Electronics Apprenticeship.
Tried speed for one binge period only at 20 and never touched it again for 10 years.
At 22, qualified as a Radio and Electronics Technician, I came to Australia and first tried psilocybin.
I first used MDMA in 1989 at age 30 and haven't been the same since
Besides all the usual things, the chemistry (or my lack of understanding of the syntheses) ate at me until I eventually enrolled to study the subject. My intentions were never to make MDMA, just to learn the chemistry and the pharmacology of these drugs. But as time went on I was drawn towards the toxicology of drugs, particularly MDMA, and its accompanying impurities. Other HM work followed and here we are...
I think they are the most relevant ones. Any other's have been either experimental or
curiosity kills one off occasions.
As for what drug information I possessed with each new drug experience; Certainly more than just about anyone I knew at the time, but only that which I'd sourced and pieced together myself. It was far from a complete picture, and far less than most bluelighters would know today.