@eduardmsmr
Jesus was "made like His brethren in all things" (Hebrews 2:17), which means that He had a sinful flesh (anger, pride, etc.) and self-will just like us
but then, how did He die on the cross without sinning once? (Hebrews 4:15)
He was "obedient to the point of death" (Philippians 2:8). Jesus died to Himself at all times to do only God’s will (John 6:38)
if He had done His own will just once, He would’ve sinned. so the only way to live without sin and become perfect is to always do God’s will!