If you get down and quarrel every day, you're saying prayers to the devil, I say.
Finish each day & be done with it. You have done what you could. Learn from it; tomorrow is a new day.
In order to be good at something, you must practice at it. Life will not give it to you on a silver platter. Nor will God.
Be strong and bold; have no fear or dread of them, because it is the Lord your God who goes before you. He will be with you; he will not fail you or forsake you. Do not fear or be dismayed.