For as long as I can remember, we have been indirectly taught by our social construction NOT to feel negative emotions. From a very young age, we get emotionally invalidated in so many ways until that becomes our norm. We get told not to cry or not to get angry, which teaches us to avoid unpleasant feelings at any cost. With continuous practice, following what we have been taught to be the right thing, we get programmed to send our negative emotions to the subconscious mind where they get manifested into other forms.
What are the odds that those who try committing suicide are only crying for help and have no real intentions of ending their lives? Gambling with one's life should not merely be perceived as a "call for attention," it should instead set the alarm bells ringing.