If we’re struggling to forgive someone, just realise that we have to choose one: law or grace. We can’t apply double standards.
James 2:10 King James Version (KJV)
10 For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.
Ephesians 2:8-9 King James Version (KJV)
8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
9 Not of works, lest any man should boast.
However, this doesn’t mean we don’t work. We must work even though it doesn’t produce salvation!
Philippians 2:12 King James Version (KJV)
12 Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling.
The quickest way to salvation is by surrendering all our little treasures to God.