For with God nothing shall be impossible. Luke 1:37 KJV
You cannot fail when you walk with God. His Word says you can do all things through Christ which continually strenghens you.
We so limit ourselves if we solely rely on our own human ability and acumen. By design of our Creator, God, we are only living at our maximum potential when united with, and yielded to, Him.
Then he answered and spake unto me, saying, This is the word of the Lord unto Zerubbabel, saying, Not by might, nor by power, but by my spirit, saith the Lord of hosts. Zechariah 4:6 KJV