Who would you rather be around? Someone who is always going on about themselves, or someone who demonstrates humility?
Is there anyone you’re still angry with? The Bible is rich with text that tells us how we should feel towards grudges.
God knows you’re going to get tired; He knows that this world will wear on you, so being the loving Father that He is, He’s written to us, He’s given us instructions on how to deal with that.
God knows how susceptible we are to pride and warns us often of the damage that it can do to us! Pride can quickly lead to a hardening of the heart.