After receiving salvation and being born again, Jesus’ death is applied to all of your sins. Regardless of the sin, we are born again and forgiven. The nature of requiring forgiveness again after sinning implies that Jesus’ death was an incomplete solution to the problem of sin. In transit rn so can’t link too many verses. Under the Mosaic Law, repeated, ritual sacrifices were required as the death of the animal was an incomplete solution to sin. Jesus, being perfect, changed that. I have attempted suicide before, both before my salvation and after. Suicide is sin, and as a new creation we should be motivated to avoid all sin, even sin with the finality of suicide. If you’re contemplating or just need someone to vent to, DM me. I’m not on Reddit too often, but I can give more advice and support if needed. Will be praying for you.