I have a life-threatening illness.
It is currently curable, they think. With an operation, maybe with more than one. With radiotherapy. Maybe, if needed, chemotherapy. Curable. It may not even affect my life expectancy.
But if it went untreated it would certainly kill me, in time.
So at times when life does not seem worth living, instead of knowing what I would have to do in order to cease, I know that all I have to do is refrain from doing things.
Don't go to hospital. Don't let them operate. Wait. Do what I'm good at: lie low, give no trouble, wait.
And things will happen, of their own accord, and I will not need to trouble myself - before long, will need to trouble nobody.