There is nothing you could have done by yourself.
In fact, you could not have been born. You could not have taken your first breath, and you certainly could not have understood anything in school without the God of The Universe. He allows you to drive and to cook. Only by Grace can you drink liquid.
Soldier of The Cross, He and He alone is the center of each ability, each accomplishment and each increment of growth. In and of ourselves, we are nothing and we do not have the wherewithal to do a single thing of any kind.
That is why the Apostle Paul tells the Corinthians:
So then, as it is written, Let him who boasts and proudly rejoices and glories, boast and proudly rejoice and glory in the Lord.
I Corinthians 1:34
Soldier, this is an affirmative act, and it is commanded.
Agree with God.