Belonging to Christ does not immediately eliminate our sins, but it does crucify them.
Reflect on Christ's sacrifice, and understand He did not remove sins from your life, but He did free you from the destructive control they can have over your life. You are human, but what He offers you is divine. Accept His Gift and be eternally thankful.
For we know that our old self was crucified with him so that the body ruled by sin might be done away with, that we should no longer be slaves to sin—
Romans 6:6 (NABRE)