Study the lives of those who walked closely to God and you won't find people with high self-esteem.
You'll find people with high God-esteem, people who denied themselves daily (Luke 9:23).
We're told that the solution to insecurities, fears, and inferiority is believing in ourselves. But our human problems began when Eve believed in herself (Genesis 3).
Instead, God says to put no confidence in our human efforts (Philippians 3:3) and put confidence in God's abilities (Psalm 20:7).
When we do this, we give Him freedom to change us and do great things through us:
"Now to him who is able to do immeasurably more than we ask or imagine, according to his power that is at work within us, to him be glory...forever and ever! Amen." Ephesians 3:20-21.
Don't you want God to do more than you can imagine through your life? Then believe in Him and glorify Him and quit believing in yourself!