In our walk with God, we must never forget that God loved us first. Gods love knows no ends and it is limitless and bondless. In Christ Jesus our sins were cancelled ad forgiven and God declared us not guilty. God is not counting our sins against us and has declared us not guilty.
It is not about how much we are doing God a favour by our works, rather it is about appreciating Gods great love displayed through the sacrifice of Jesus and responding to that great love by always finding out what pleases God and doing it.