If I were you, I would stick to the old tried and true of OD'ing sleeping pills. I made a SERIOUS and FIRREAL suicide attempt that way about 6 years ago with Trazodone pills, and the only reason I didn't choke to death on my own vomit was because, like the dumbass I am, I fell asleep on my side on a couch. I just had puke running down the side of the couch and on the floor. It was almost pleasant the way you drift out of consciousness, honestly.