"The thought of suicide is a great consolation: by means of it one gets through many a dark night."
- Nietzsche
Note: I can't remember whether or not that is a real quote...
... But that really doesn't matter for the purposes of this discussion, does it? I do what I'm doing now - I visit sites like this one, write notes that never seem to turn out right, look for ways "out" that seem effective in my current situation (wherever I am at the time).
The last house I lived in had an enclosed garage for CO poisoning and exposed beams in the semi-finished basement for partial suspension hanging. The current place doesn't even have trustworthy closet rods!
That's really neither here nor there, though.
Once I hit the 'zone of immediacy,' I am beyond the point of much help until it burns itself out or I die. When my early warning signs show, before I'm in any danger but while I'm still heavily depressed, I sometimes try to improve the weather in my head by indulging in small luxuries... Stuff like showing up waaaay overdressed to a cheap bar or making particularly tasty food so I at least eat once that day (seared duck breast is at least as easy as steak and twice as delicious, for example). Wine is good, in quantity, right up until it isn't.