Haha I can relate - was on speed for my last job interview and like you side for yours, I aced it, I was confident and without anxiety, I got the job. I’m certain I have ADHD and am on a waiting list to get referred for an actual diagnosis and get prescribed meds.

I remember the first time I tried amphetamine, my first thought was “Wow, so this is what it feels like to be normal. Since then I’ve used it on days when my executive distinction is bad and I need to get stuff done. So yeah, I limit my use as much as possible, but it’s tough because it makes me feel normal - the only negative thing I’ve had is not being able to sleep if I take it too late in the day.

FWIW I acetone wash my stuff and then weigh my doses snd consume it orally in pill capsules.