The wages of sin is death. All sinners are lost in sin. They are slaves to sin, but Jesus Christ saves from sin. He saves those who believe in Him and who obey Him, who repent and are baptized in water. He makes them free from sin so that they will sin no more, but if they go back to sin, they are entangled in sin and they are doomed, if they do not repent.
Jesus said that those who follow and obey Him until the very end, will be saved. Repent and be baptized in water, be filled with the Holy Spirit and follow the guidance of the Holy Spirit until the very end. Once saved always saved is a lie.
If you have backslidden and you are entangled in sin again if you are lost again; then repent, and go back to Jesus, follow Him until the very end or else you will end up in hell. You must endure with Jesus Christ until the very end.
May Jesus bless you.