Do you consider yourself a good person? By what standard are you judging your 'goodness' by? The 10 commandments exist to show you that you're not good and that you need a Savior. Forgiveness is available today, but God's tender patience won't always be there. There's coming a day when Christ will return to judge the living and the dead.
The Bible is filled with people who did horrific things. King David slept with his friend's wife and then gave orders to have his friend killed to cover up the situation. There's nothing you can do that will push you too far away from God. His hand is outstretched towards you waiting to extend grace! God brings from the fringes His brightest lights.
This video clip was taken from the following sermon: The Village Church (Matt Chandler) - "And In Jesus Christ, His Only Begotten Son, Our Lord"