A true fear of God is not just respect, appreciation or reverence for him.
Does your flesh tremble before him? Does his law scare you as a sinner? It should, because his holiness and the holiness of his Law kills (Romans 7:9-12).
My flesh trembles for fear of you, and I am afraid of your judgments! Psalm 119:120
Work out your salvation with fear and trembling. Philippians 2:12
As you learn to love God, learn also to fear him. You cannot grow your love for him without growing your fear of him, nor can you grow your fear of him without growing your love for him. We do not tremble because his character or face is scary—it is precisely the opposite, beautiful and majestic beyond compare (Ex. 3:6; Ex. 33:21-23)—but because our own hearts are evil and ugly (Ecc. 8:11; Jer. 17:9; Matt. 7:11).
As well, the more you fear God, the less you will fear man.
And fear not them which kill the body, but are not able to kill the soul; but rather fear him, which is able to destroy both soul and body in hell. Matthew 10.28
“Fear not the smallness of your beginning. What is begun in the fear of God, he will prosper.”