heroin #3

I cant find any info on how to inject #3 except I need a spoon, acid(Vitamin C, Lemon Acid, etc.), distilled water and to heat it. I though it was enough but how much acid, water or heroin I should put? And how to know when is ready? I tried multiple times but it feels like I do something wrong...

Introduction Heroin (diacetylmorphine) is a synthetic opioid available on most darknet markets. In Europe, it is almost exclusively sold as heroin #3, a brown powder containing diacetylmorphine (DAM) as water-insoluble base. For heroin users, it is very difficult to make an objective judgment...