The appeal of an heroin OD is that assuming you fail to fatally OD,chances are the damage will be minimal,you'll likely just wake up with a nasty feeling. (This is unlike shooting yourself,jumping off a building,or getting run over by a train. If you screw that one up,there will be permanent and life-altering consequences. Failure with hanging yourself tends to also result in your becoming a vegetable)
That's only with heroin specifically however. I can't speak about trying with other kinds of drugs other than Nembutal(which is even harder to access than heroin if I'm not mistaken.)
Complete uncertainty of a happy future in my case. I'm a college student,and through sheer force of luck,I've managed to reach the point where I am now and I'm near graduation,but I'm aware that there is still no guarantee,I could still fuck up and my life could fall apart at any moment. I don't like studying. (I like reading about a variety of other topics,but what I'm studying specifically is something I have no real interest in and actually hate studying.)
Even in the best case scenario that I pass college,I'm likely to end up just as a typical 9-5 wage slave. I don't want that future. I mentioned awhile ago here that I'm trying to convince my mom to buy a business video course from a guy I trust so that the both of us could possibly start a business of our own and
escape 9-5 wage slavery. Of course,even this doesn't guarantee anything. If the worst-case scenario happens and I fail at everything,I certainly want an option to mercy kill myself. Unfortunately,my options are rather limited. I might end up having to settle for partial/full suspension hanging,though if the time comes,hopefully I'll have access to more painless and peaceful methods.