Violence Against Themselves... Poetic Justice?

Suicide... A word that I sometimes don´t even understand. Should a person that takes their own life away be punished because they are not happy with themselves? I really don´t know. 

But in "Dante´s Inferno" they deffinitley believe so. The souls that commit suicide are punished by being converted into trees, that feel everything but cant do anything about it.. Wether they like it or not. 

I am in a dilema because I am not sure if this is the way it is supposed to be. The person that commited suicide did it because they were sad, not to harm anyone. But at the same time they harmed themselves. They did not realize all that they were losing and that they could never go back. They did not appreciate the gift that God had given them to be in life and do great things. But what I am sure about is that a person that kills themselves is becasue they are in great saddness. So I conclude that when they die they should go some place where they can get help and finally be at peace and happy with themselves, because once a person kills themselves, they are in a war against themselves.