Sometimes Christians think that their sin is no longer n issue because they have been born again through faith in the shed blood of Jesus Christ. It is true that faith secures one's salvation but sin or the avoidance of it is still crucial to our daily relationship with God.
None of us are perfect and we all sin at times, but god has given us a remedy for that. He has because our sin has broken off our fellowship with Him and He desires that we would repent and get back to walking with Him.
Listen carefully and the remedy for sin in your life so as not to continue down the road of regret.