If you had made yourself, you would be finished.
But you didn't do it.
The One who made you, He knew every challenge you would face, your flaws and weaknesses. He was the one who put them there.
And for every brick wall you hit, He provided a ladder. For every chasm in your soul, a bridge to cross it. For every mountain you have to climb, a reservoir of strength to surprise even yourself.
When a challenge arises, you only need to imagine what is necessary to overcome it; and you can be confident that that strength is within you.