Sometimes it is the moment that is shitty not the life. But someone can be so deep in the hole that they can’t see that.
Can you come up with an example? That would mean that people choose to kill themselves based on moments. But from my experience talking to friends they suffered long before trying.
Sometimes it can be a series of things that happens within a short time period. Sometimes it can take someone saying something to you and it is stuck in your head for months.