When you accept Jesus as your Savior and Lord, you are free, healed. You are saved because of Jesus. God declared you righteous by the blood of his son Jesus through the faith in Him. - Romans 3,20-25.
Do not hesitate to believe Jesus because of your sins, you are not too bad. Jesus came for the sinners, not for the right people. Can you imagine Paul was criminal but he got grace of God and he became Apostle of Jesus. Acts 9,1-30.