Honestly, I don't see what all the fuss is about. To me it feels like coffee, but it only lasts 15 minutes, tastes like shit, and costs upwards of a testicle and a half where I am. And no, I'm not looking for anyone to try and change my mind on that.
Basically, it was in front of me, and I've got an unfortunate amount of experience kicking stimulant habits (I was an Adderall kid), so I figured I wasn't at any particular risk of getting addicted. I tried it a few more times after that and came to the same conclusion, so at this point I don't think I've touched the stuff in over a year.
Also I was drunk every time someone offered it to me.
I'm inclined to ask, are you sure you got true concentrated cocaine? I don't encourage cocaine, but it sounds like you got scammed with something the seller could more easily get their hands on.
It was probably shitty coke, but there was at least one time where my buddy said "yo this is some good stuff" and it still didn't do it for me. Who knows if it actually was good stuff, though.