John the Baptist preached a baptism of repentance in preparation for the coming of Jesus. A baptism, or immersion, into repentance means it becomes a characteristic of your life from then on. Repentance is not just a one-time act. It has a starting point, but it continues as a way of life, because as humans we will always be vulnerable to sin - no one is perfect except God. John was saying, God wants to give you repentance so that when the Messiah comes, your heart will be ready to receive His salvation. The message Jesus preached was also "Repent, for the reign of the LORD (YHVH) is coming." Sin cannot dwell in God's presence. Jesus was warning, essentially, "if you don't repent and receive the gift of God, you will not be able to survive in His presence." You can't receive the gift of salvation without repentance. The good news is that Jesus is the Lamb of God who TAKES AWAY sins - He doesn't just forgive us - He takes away our sins when we repent. That is what He wants us to believe in when we say we "believe" in Him. The good news is not just forgiveness and freedom to then continue in sin, but the real good news (gospel) is more than forgiveness. It is the new covenant - which is the law written inside our heart instead on the stones. We are no longer obeying outward laws, but following what He puts in our heart to WANT to do. If a law is in your heart, it is no longer a hard external rule, but a heart-felt desire. This is the fruit of repentance. The good news is the gift of a new, pure heart that delights in obeying God's requirements of holiness, and the power of the Holy Spirit to begin walking in the direction of purity. You got some other good advice for reading in Romans about the struggle between this new heart and the flesh that fights it so I won't go into that aspect. But if you don't really want your sins to be taken away, Jesus will not do so. If you ask Jesus to save you without wanting the salvation He says He offers - the gift of a new heart to live through His new life, you will not be saved. Because in that case, your idea of what salvation means is not what He means by it. I do not presume to know your heart and whether you are saved, so I am not necessary using "you" to address "you personally". But if we repent - agree with God about our sins and turn away from that to Him - or even just ask Him for a repentant heart because we realize we don't have one, He will give the repentance necessary for salvation from our sins. It is a gift, not a decision. If you ask for it and He gives it, don't wait, believe Him and take it! When we are saved from our sins and baptized into repentance and into His Holy Spirit, He will give us a new heart that WANTS to do right and wants to be pure, the faith to believe His power in us will do it, and a heart that will repent when we do sin. We all will sin, but it will bother us enough to repent and allow Him to take it - when before salvation we didn't care.