I have, read the article which will reveal that what you believe is truly not God's Will. I know I've suffered depression to the point I did not desire to live, but the Lord delivered me out of it, and kept me from even thinking to kill myself. He said He shall never loose one of His Sheep, which God has given Him, and that includes suicide. He shall keep them from doing so.
And in another place:
"The Lord will never allow, His Children to take their own lives, which is self-annihilation, because those who do take their lives, suicide, were never truly His Children, they were not born-again, they were never saved. They were deceived in thinking they were saved. No one who commits suicide is with the Lord in Heaven......"
There is a difficulty when one takes from their own experience and makes a comparative to all others. One size does not always fit.
One of the wonderful songs often sung was written by a man who suffered. Two women in whom he had become betrothed both died from drowning. Yet, when his own mother was in terrible grief, he wrote a letter to her and included a poem to help her. On a side note, he was also found dead laying in a stream, but no autopsy was done to know if how he died. The poem, "What a friend we have in Jesus."
Another great poem was written by a man who was raised in a workhouse. He struggled with severe depression, anxiety, malaise, ... He tried to commit suicide three times and failed. A good friend and co-author with Newton, William Cowper, perhaps the greatest poet of his day, was the writer of "There is a Fountain."
However, what is more troubling concerning your view is that you actually attach suicide with salvation.
Only God knows the heart, and only God redeems.
Paul states that there is no condemnation to the believer, and further that nothing separates the one in Christ from God's love.
I have met with families that had a child had committed suicide. Dare you rob from them the assurance of their loved ones eternity?
Suicide is not the determiner of how or where one spends eternity.
Some have willingly given their life for others (suicide missions) on the fields of battle and conflicts.
Died giving organs that others might live.
If suicide were a determiner, then martyrs who have
willingly given their life for Christ and even the Lord have become invalid.
For NO one took the Lord's life from Him, He had the power to lay it down and take it up.
Those who perished by spear and arrow in Ecuador, willingly giving their life for the cause of Christ, did not die in vain nor be shunned from Heaven.
Stephen, who would not deny the Lord even as stones rained upon him was honored by Christ.
I admit that this topic brings an emotional response from me. And I do not excuse such, for it is well founded.
There is another side to this that I haven't shared. Suicide is also used as the ultimate avoidance.
When a person is ensnared in sinfulness, that which society greatly objects, then to be discovered, to be "outed" can push a person to desperation.
Desperate people rarely consider rationally what is best and far less what is the best response to an overwhelming situation.
Would it be better to end my life then to see my loved ones suffer?
Would it be better to end my life then to see my Lord's name harmed?
Would it be better to end my life then to bring shame to the church?
These are all within the thinking of one desperate.
But, none of these pertain to the question of eternity.
That question resolves to one who believes or one who does not believe.
That is the point of this post.