Yes, once you're truly saved it's impossible for you to lose your salvation. Check out these verses:
(1 John 2:19 NIV) They went out from us, but they did not really belong to us. For if they had belonged to us, they would have remained with us; but their going showed that none of them belonged to us.
(Ephesians 4:30 NIV) And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption.
Thanks for sharing your view and for sharing these scriptures. Appreciate your involvement in the discussion. Blessings