A big ego is linked to your self image.You become confident and satisfied with you. It’s the assurance of what lane you should follow in. It’s OK to know who you are and have the assurance of knowing. Don’t allow pride to seep in and corrupt your self-assurance.
Psalm 139:14(AMP)
14I will confess and praise You for You are fearful and wonderful and for the awful wonder of my birth! Wonderful are Your works, and that my inner self knows right well.