Psalm 131.1-3. O Lord, my heart is not lifted up my eyes are not raised too high; I do not occupy myself with things too great and too marvelous for me. But I have calmed and quieted my soul like a weaned child with its mother; my soul is like the weaned child that is with me, O Israel, hope in the Lord from this time on and forevermore.
There is a line from a Clint Eastwood movie, which said, "A man gotta know his limitations."
With that statement I agree. Know your strengths, know your weaknesses and when you do; there will be no standing where you ought not