When Christ changes us into a new creation it is not our work it is His. We cannot undo what He did when we desired to be changed by Him. God does not throw away sinning children, He disciplines them.
Hebrews 12:5-7 "…5 And you have forgotten the exhortation that addresses you as sons: “My son, do not take lightly the discipline of the Lord, and do not lose heart when He rebukes you. 6 For the Lord disciplines the one He loves, and He chastises every son He receives.” 7 Endure suffering as discipline; God is treating you as sons. For what son is not disciplined by his father?…"
Even the smallest bad attitude can cause us to go to hell before we are saved because it is not about individual sins, it's about our sinful nature that God will not allow into His presence. When we become saved the Holy Spirit moves into us and begins the process of cleansing. Jesus Christ covers our sinful nature with His Holy Spirit so that when God the Father looks at us He sees Jesus Christ, not our sinful nature.
When we understand the incredible miracle Christ did in us when He sealed us with His Holy Spirit we would not spend one moment wondering if He saved us "eternally", we would just praise Him for His ability to save us and keep us.
The more we focus on works to remain saved the less we glorify Christ. Everything becomes fear about "doing it right" rather than what Christ did in us and what He can do in us.
1 John 1:8-10 "…8If we say we have no sin, we deceive ourselves, and the truth is not in us. 9If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. 10If we say we have not sinned, we make Him out to be a liar, and His word is not in us.…"
Those who confess their sins and desire to be cleansed by Christ will grow in holiness and humility.
Those who do not confess their sins will not grow, they remain spiritual and emotional infants. Or, worse they may not even be born again. Something to think about.
Ask God!!!!