Your confidence is in Jesus. One time I was supposed to give a talk and all I said was, Lord you are my confidence. My confidence is in you. I can do all things...look at the word, "all". I didn't just say it once, cause I was in fear, talking in front of a group of people...not me...but I can do this because Christ is in me and He helps me, and "All" things means whatever you set your heart to do, it will be blessed as you push through by recognizing that God wants you to succeed, to be confident because, He's in you. Greater is He that is in you, than he that is in the word. You contain wonderful abilities, gift, talents because you possess God and His Presence is in you.
Faith in Christ in you.