Everybody or anybody couldn't deny that's sometimes we keep overlooking the mistakes, bad things that someone has done to us. The moment that we have gravely forgotten the precious, broad, good things that have done for us by someone. Don't ruin your relationship just because of that 10% misunderstanding between you and them. But rather recollect the 90% good memories that both of you shared with each other whether with your relatives, friends, or any people you have been with. If you change your mindset into this, it will no longer harden your heart, and that you will be forgiving person. What is said in the Bible in Colossians 3 verse 13 "Bear with each other and forgive one another if any of you has a grievance against someone. Forgive as the Lord forgave you."