I'm not religious, but if Christianity is important to you, join one of the many churches that don't condemn people who die by suicide to eternal damnation. Even the Catholics have changed their mind:
"Grave psychological disturbances, anguish, or grave fear of hardship, suffering, or torture can diminish the responsibility of the one committing suicide. We should not despair of the eternal salvation of persons who have taken their own lives. By ways known to Him alone, God can provide the opportunity for salutary repentance. The Catholic Church prays for persons who have taken their own lives."