To carry a grudge is like being stung to death by one bee.
Holding a grudge does less to hurt the person with whom you have a grudge than it hurts you. If you are holding a grudge right now, pray that it’s sting will be removed from your life so you can start healing.
If you forgive others their transgressions, your heavenly Father will forgive you.
Matthew 6:14 (NABRE)