No you cannot lose your salvation if you were truly saved. Some think they are saved when in fact they are lost, and their lives show they are lost. A saved individual is a changed individual no long living to satisfy the lust of the flesh. For we are new creatures in Christ the old has passed away.
38 And I am convinced that nothing can ever separate us from Gods love. Neither death nor life, neither angels nor demons, neither our fears for today nor our worries about tomorrownot even the powers of hell can separate us from Gods love. 39 No power in the sky above or in the earth belowindeed, nothing in all creation will ever be able to separate us from the love of God that is revealed in Christ Jesus our Lord Romans 8:31-39.
I don't think a true Christian a truly saved individual will continue to live a life of sin, you cannot practice immorality and remain a Christian for then the spirit of truth does not live in you. so many will say it is not by works that you are saved, this is so true we were not saved by anything we did but once we are saved we are changed if we do not see change then it was false salvation. I have heard it said you cannot say that for again then you are saying works saved you, no i didn't say that I said that Salvation causes us to bear good fruit it is not us doing it is God working in us to do it, he changes our desires so that we do not desire to live according to the flesh but to live according to the spirit who guides us into all truth. So if you are walking outside the laws of God and call yourself a Christian repent now or you are not saved you cannot be for darkness does not dwell with the light for the light brings the darkness into the light and shows it for what it is, if the spirit of God is not showing us our sin and our need to turn from it Christ is not residing in you at all you are lost. Hebrews 12:5-7 "and you have forgotten the exhortation which is addressed to you as sons, "MY SON, DO NOT REGARD LIGHTLY THE DISCIPLINE OF THE LORD, NOR FAINT WHEN YOU ARE REPROVED BY HIM; FOR THOSE WHOM THE LORD LOVES HE DISCIPLINES, AND HE SCOURGES EVERY SON WHOM HE RECEIVES." It is for discipline that you endure; God deals with you as with sons; for what son is there whom his father does not discipline?
there you have it if you are not being disciplined you are not his son or daughter you are lost but if you are his you are saved forever you cannot loose this salvation it is not possible for he will keep chastising you until you repent and change he won't give up on you, you were bought with a price now honor your bodies as living sacrifices to Christ who paid dearly for you.