Deliberate murder, including self murder, is a grave sin... “but the Lord pondereth the heart.” -Proverbs 21:2
As with many things, it is best not to making assertions above our paygrade and leave the judging of souls to Him.
“No one goes to Hell on a technicality.” -Popular expression among Orthodox elders.
Please also note, nobody in Revelation is mentioned as being condemned to Hades for their personal sin. Rather, ALL sin was paid for by Christ at the Cross. Sin was already judged.
The issue is forgiveness.
Condemnation precedes salvation.
All humans are condemned prior to salvation. Our sin prior to death is no longer the issue. The issue is our facing God, confessing our sins to Him thru faith in what Christ provided in that judgment at the Cross, and then God is free to forgive us those sins.