Living as if in hell, dying for ever in hell. I will never label someone commited suicide as mentally ill. It's about the choices.

For those who are suffering from depression, you have two options.
　　
1st, Shut up your lousy illusions and accept the lousier world as common mankind usually do. Do it peacefully.The only one can destroy you completely is yourself.
　　
2nd, Arm yourself with wisdom and power to rage the whole world and lead your unique life without any regret. Try to enjoy it in any circumstances.
　　　　
Whatever you choose, be strong and patient.