Please, I beg of you to reconsider taking up a Heroin habit because you're displeased with life. Especially at just 16!
Opiates are perhaps the most dangerous thing in existence, they completely warp your every perception of life in the darkest of ways. It's easy to think you'll be different, that you won't turn out like the countless "Junkies" you pass by every day - they all said the same. Opiates will take over your life, and every day will threaten to take that very life from you.
I started down this road at just 13, myself, graduating from 60mg of Codeine every now and then, to stabbing a hole in my arm and filling my blood with ridiculous quantities of Morphine, Fentanyl and, yes; Heroin. They stole my life, my home and my health, and I'm yet to reach 21 years old.
Please, don't make that first move, you're better than that, don't end up like me.
Stay safe,
Sprout.