Interesting that in the amplified translation it says… forgive and let go
I think the letting go is perhaps even harder and more important that the forgiveness.
“Then Peter came to Him and asked, “Lord, how many times will my brother sin against me and I forgive him and let it go? Up to seven times?””
Matthew 18:21 AMP
https://www.bible.com/1588/mat.18.21.amp
By the way, Jesus’s answer was 70 times 7, in other words, forgive all the time.