Do I lose my salvation every time I sin?
If that were the case, then you would essentially be earning your salvation by your good works. Ephesians 2:8-9 explains it this way, "For it is by grace you have been saved, through faith-and this is not from yourselves, it is the gift of God-not by works, so that no one can boast." If you could be good enough to deserve salvation, then you would boast in yourself, not in Christ. Furthermore, if you could live without sin, Jesus would not have had to die.
If you have truly repented of your sinful nature, and asked Jesus to be Lord in your life, then you have begun a lifelong journey in which you will constantly be convicted of sin by the Holy Spirit. This does not mean that you aren't saved; it means that the Holy Spirit is calling you into righteous living through conviction of sin. This process will continue until the day you stand before Jesus. Philippians 1:6 says, "...he who began a good work in you will carry it on to completion until the day of