I'm curious how other people think their function stack helps explain how they arrived at their decision to CTB. I'm INTJ so I'm Ni-Te-Fi-Se, so in my case I think it was something like:
Ni: Focused all my energy towards the singular goal of committing suicide
Te: Researched, planned, and prepared it
Fi: Justified it according to my own values
Se: Least developed function, only comes out occasionally during times of stress. Will (hopefully) be what allows me to make the leap
EDIT: wording
Some time back, I was a bit of a typology nerd, so I loved learning different systems. As far as I remember, those that use the functions are MBTI, Jung and Socionics but you're probably talking about the MBTI function stack. I first typed myself in the IEIE stack, but then I switched to the IIEE stack because I found it a bit more "relatable." I haven't "retyped" myself in a while, so I'm not 100% sure in my type, but I think I'm an ISTP (TiSiNeFe)
My dominant
Ti: Ti helps me to plan my CTB. I can use my experiences and the experiences of others, that I heard worked/didn't work to decide when and how should I CTB? What sources would help me CTB? How do I prevent surviving or becoming a vegetable? (etc.)
My auxiliary
Si: Si helps me to stop myself and ask myself: "what if this method won't work? Maybe I should use my Ti and research more about it?" It also helps me pick the most "peaceful" way to CTB, since sensory details play a big part.
My tertiary
Ne: my tertiary Ne doesn't help me much, but I guess it helps in a way that I lower my expectations to avoid disappointment. If I'm sure that the CTB method I'm currently thinking of won't work, I can use my other functions to find a better method.
My inferior
Fe: since Fe isn't that important to me, I guess it helps me to not be emotionally dependent with people. Since my Ti dominant rejects Fe, I don't think I have many people who I'd hurt by my CTB.