According to AFSP:(American Foundation for Suicide)

​Environmental Factors That Increase Suicide Risk

Some people who have one or more of the major risk factors above can become suicidal in the face of factors in their environment, such as:

A highly stressful life event such as losing someone close, financial loss, or trouble with the law
Prolonged stress due to adversities such as unemployment, serious relationship conflict, harassment, or bullying
Exposure to another person’s suicide, or to graphic or sensationalized accounts of suicide (contagion)
Access to lethal methods of suicide during a time of increased risk
Again, though, it is important to remember that these factors do not usually increase suicide risk for people who are not already vulnerable because of a preexisting mental disorder or other major risk factors. Exposure to extreme or prolonged environmental stress, however, can lead to depression, anxiety, and other disorders that in turn, can increase the risk for suicide.

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Protective Factors for Suicide

Protective factors for suicide are characteristics or conditions that may help to decrease a person’s suicide risk. While these factors do not eliminate the possibility of suicide, especially in someone with risk factors, they may help to reduce that risk. Protective factors for suicide have not been studied as thoroughly as risk factors, so less is known about them.

Protective factors for suicide include:

Receiving effective mental health care
Positive connections to family, peers, community, and social institutions such as marriage and religion that foster resilience
The skills and ability to solve problems
 

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Protective factors may reduce suicide risk by helping people cope with negative life events, even when those events continue over a period of time. The ability to cope or solve problems reduces the chance that a person will become overwhelmed, depressed, or anxious. Protective factors do not entirely remove risk, however, especially when there is a personal or family history of depression or other mental disorders.

A person who is thinking about suicide may say so directly: “I’m going to kill myself.” More commonly, they may say something more indirect: “I just want the pain to end,” or “I can’t see any way out.”

Most of the time, people who kill themselves show one or more of these warning signs before they take action:

Talking about wanting to kill themselves, or saying they wish they were dead
Looking for a way to kill themselves, such as hoarding medicine or buying a gun
Talking about a specific suicide plan
Feeling hopeless or having no reason to live
Feeling trapped, desperate, or needing to escape from an intolerable situation
Having the feeling of being a burden to others
Feeling humiliated
Having intense anxiety and/or panic attacks
Losing interest in things, or losing the ability to experience pleasure
Insomnia
Becoming socially isolated and withdrawn from friends, family, and others
Acting irritable or agitated
Showing rage, or talking about seeking revenge for being victimized or rejected, whether or not the situations the person describes seem real
Individuals who show such behaviors should be evaluated for possible suicide risk by a medical doctor or mental health professional.

What To Do When You Suspect Someone May Be at Risk for Suicide

Take it Seriously

50% to 75% of all people who attempt suicide tell someone about their intention.
If someone you know shows the warning signs above, the time to act is now.
Ask Questions​

Begin by telling the suicidal person you are concerned about them.
Tell them specifically what they have said or done that makes you feel concerned about suicide.
Don't be afraid to ask whether the person is considering suicide and whether they have a particular plan or method in mind. These questions will not push them toward suicide if they were not considering it.
Ask if they are seeing a clinician or are taking medication so the treating person can be contacted.
Do not try to argue someone out of suicide. Instead, let them know that you care, that they are not alone, and that they can get help. Avoid pleading and preaching to them with statements such as, “You have so much to live for,” or “Your suicide will hurt your family.”
Encourage Professional Help​

Actively encourage the person to see a physician or mental health professional immediately.
People considering suicide often believe they cannot be helped. If you can, assist them to identify a professional and schedule an appointment. If they will let you go to the appointment with them.
Take Action​

If the person is threatening, talking about, or making specific plans for suicide, this is a crisis requiring immediate attention. Do not leave the person alone.
Remove any firearms, drugs, or sharp objects that could be used for suicide from the area.
Take the person to a walk-in clinic at a psychiatric hospital or a hospital emergency room.
If these options are not available, call 911 or the National Suicide

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Prevention Lifeline at 988 for assistance.