A WARNING SIGNS OF SUICIDAL

This is my part that's I'm talking about signs of suicidal. In this time I just found four points about the signs that is first, talks more about committing suicide. Second, has trouble eating and sleeping. Third, loses interest in hobbies, work and school. Fourth, withdraws from friends or social activities.
My part is number of 3.0 that is after kak Mar point about factors of suicide. I write full of my part ok!=>
3.0 A Warning Sign Of Suicide
3.1 talks about committing suicide
Someone who is giving some words that refer to die. Sometimes they write on a piece of paper and sometime they talk with their family and friends about the suicide. The people who want to be suicidal, they do not tell any mental-health professional. It's because they worry if they told them about what they were plan. it can make their plan fail.
3.2 has trouble eating or sleeping
This sign also making someone kill themself. It's because, they are suffering from their problem in sleeping and eating. For example, they have no appetite in eating or also can happen to someone who are having overweight! And also it can happen to people who are getting insomnia disease. It's mean someone are not having a good sleeping and it can make people feel depress and pressure.
3.3 loses interest in hobbies
In their interest, also changed. It's because they thought easily thing that can make freedom. And their found the answer that's suicide. What they will think about suicide which is they kill themself is they will free from their problems. So, the best thing that can them take is be a suicidal. As we know a normal person is have their own interest or hobbies. They will do their hobbies with friends, family in a happy ways. But, when someone having a problem, they will alone and not doing anything like before their have a problem. Everything that they like will lost!
3.4 withdraws from friends or social activities
Furthermore, the person who is potential to be a suicidal, they will withdraws from the other people like family, friends and also the other society. Besides, when having some activities this person are not participate the activities. And also they will looking lonely and not being friends with the other people. For example, in an event they are not taking any participant or in other word is they are called passive person.
If have any ideas, please welcome to add my points...