Hell does exist and very few people get to come back and tell the truth of it's dire reality. If you have problems and you think suicide is the only way out. Find somebody to share your problem. There are people who care, who are willing to help and will listen.
A person entered into my life contemplating suicide. When I told them of the reality of heaven and hell they told me that they had been made to feel unworthy. This person is coming to know that they are worthy and are loved by me and G-d. There is always somebody there to help you, and don't worry if you can't find them, G-d will send them to you. So please, don't take your own life. Leave your life to the Lord and trust in Him to bring somebody or guide you to somebody who will help you find a way.

I think suicidal people need more than religious speeches. Then again, maybe thats why they were suicidal to begin with.