John 3:16-17 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
This is saying to you, that you cannot work your way into heaven. However, if you believe that Jesus came to earth and gave his life for your sins, you can go to heaven and live forever with the Father. You can receive everlasting life right now. All you have to do is believe, pray to Jesus Christ, and confess your sins. Then ask him to forgive you of all of your sins and come into your heart. That is all there is to being born again. It is a very simple gift, all you have to do is be willing to accept the gift and truly believe. You may say that, you do not sin. Romans 3:23 says For all have sinned, and come short of the glory of God. So as you can see, no one is without sin. Your sins can be forgiven through Jesus Christ.