I think the story of JOB in the bible is a good story to read.
It's not about this world it's about the one to come. I have come to the edge and some days I feel so depressed but I pray and read the bible.
I take each day at a time and pray that it never gets that desperate that I want to take my life. That would be the worst thing because afterwards there would be no redemption (second chance) for me.