Sin is bad, yea. But Jesus came so that asking for forgiveness wouldn’t require all of the sacrificial offerings, the priestly red tape, etc. Jesus came because he knew we could not abide by the law fully all the time. And sure, there’s a lot of good stuff in there that you should follow, but at the same time, making a mistake is not as huge a deal anymore as long as you go to the Father and ask for his forgiveness