Suicide is a delicate subject and there are clear reasons for not discussing this subject, which implies we regularly abstain from talking about it. Sadly, talking%A0is our most noteworthy resistance against losing loved ones in family and friends which could commit suicide. That is why suicide is forbidden in Islam.
In any case, either you or somebody else you know, is encountering bad contemplations, do not keep those sentiments inside because it could be dangerous for them and we cannot help each other if do not discuss it. Discussions can lead to relaxation and people can avoid from doing bad things.