My mother does not make promises, but she did make me promise not to CTB within her lifetime. Since I should remain secure and taken care of as long as she remains sound of mind and body, I have no reason to break that oath, but that does not mean I cannot prepare. (She knows I am a member of SS BTW.)
I have non CTB reasons for obtaining sodium nitrite. There is some clinical evidence that small doses can boost nitric oxide levels in the circulatory system to counteract chronically low levels of nitric oxide in treatment resistant cases of congenital obstructive sleep apnea like mine. Also, I have a brother and friends who are wild game hunters that often supply us with venison from their kills, and curing venison with SN prevents and kills botulism, an infinitely deadlier entity than SN has ever been suggested to be.
Regardless of CTB, I would still likely be seeking to obtain a portable nitrogen tire inflation kit with a 150 CF aluminum cylinder (as compared to Max Dog Brewing's 20 CF cylinders) filled not with automotive grade nitrogen, but finest pure grade nitrogen for also using with my home brewing kit. (I love pear ale, and there are large pear trees in the backyard. Since it can't be bought locally, I need to brew it myself.) A 150 CF aluminum cylinder filled with pure nitrogen gas would supply far more than enough for me to repeatedly test it out safely and thoroughly the way LetzteAusfahrt detailed, with the proper type of mask he used pressed loosely against my face in a well ventilated area with good air flow.
SN would require extended preparation, while if something were to suddenly happen to my mother, I could dispatch myself with nitrogen hypoxia just as suddenly and be done with this awful existence. (My evil parasitical father now needs me far more desperately than anybody else in his life. Good. If he somehow outlives my mother, fuck him. I'll be delighted to abandon him and all my other asshole relatives.)
Otherwise, I will be teaching myself how to form a proper noose (including from bedsheets), hanging being the longtime universal CTB method of choice for preteens (like Katelyn Nicole Davis and the older sister of one of my former classmates ages ago), plus prison inmates (like NFL gridiron outcast Aaron Hernandez) and involuntary psychiatry ward patients on 24/7 suicide watches like Family Feud game show host Ray Combs (who successfully hung himself with bedsheets while on a 72 hour psychiatric hold in 1996).