Your daily dose of Proverbs:
"I am the most ignorant of men;
I do not have a man's understanding" - 30:2.
It is good to be realistic and know what you have, what you know and who you are by God's grace. If you don't, then you can be arrogant and rude, ignoring your limitations and weaknesses. Do you understand God is the the source of your life and success? Do you have a good idea of your strengths and weaknesses? You may wish to read what Paul wrote about this topic in Romans 12:3-8.