I hope this one. But it all depends on whether I can actually put my hands on a gun. SN is just too messy, I don't live alone, so I don't want to throw up or make noise. N is expensive as hell, night-night is my second way to go, but it gives me a shit ton of agony when I feel the head pressure and the carotid pulsing.
Hoping to get my .38 cal revolver soon enough, I'll just go wandering the streets at night and eventually shoot myself in the temple, brain stem or heart. The first two options seem better, but they can fail, the heart shot would just make me lose enough blood, but since it's going to be on the street, I might be rescued soon. That if I don't miss the heart or anything. I wonder if a lung puncture would guarantee death too.