I went up to my youngest son, who is a Junior in High School, put my arm around him and asked, "Have I told you lately how proud I am to be your Father?" Obviously, he beamed with delight.
Self-esteem, IMO, is recognizing the truth that we are valueable. True self-esteem can only come from recognizing our worth in Jesus Christ. We also need to recognize that we are immportant to others as well.
Pride is taking the credit ourselves.
I know who I am in Jesus Christ. I know what and who He has made me. I value what the Lord has done in my life. It fuels me. It encourages me. I recognize on a small scale how valueable I am to Him. He paid the ultimate price for me. That gives me self-esteem, not pride. With that self-esteem based on what Jesus did for me, I can walk with head held up high, not my nose!!!