The only remedy of suicide
Any human experiences moments of sadness and despair for multiple reasons either because of poverty or disease or being subjected to injustice or failure. This may lead him to suicide. The reason of this feeling is that he does not believe that he will return to the one who created him from nothing, there is no remedy for the problem of suicide except by believing in Allah, his angels his books and messengers, the last day and the divine decree whether it appears to be good or evil
Allah said ( interpretation of the meaning ) :
{ And We will surely test you with something of fear and hunger and a loss of wealth and lives and fruits, but give good tidings to the patient, Who, when disaster strikes them, say, "Indeed we belong to Allah, and indeed to Him we will return." Those are the ones upon whom are blessings from their Lord and mercy. And it is those who are the [rightly] guided. }
AL‑BAQARAH (155:157)