Dear Victor, you raised a very important question, and for those who are going to commit suicide, this is truly a vital question!
However, I do not see a connection between the decision to commit suicide and joy or happiness.
He who dared to leave life - how to inculcate in his consciousness that there are joyful moments in life and moments when a person is happy. We do not know the intentions of standing on the road to suicide.
It seems to me that the question is posed incorrectly.