The human body was wisely designed; we neither pat our own backs nor kick ourselves too easily.
Find a happy medium in your self esteem. Take inventory of your strengths, use them for good, but do not boast. Give yourself some slack on your weaknesses and use your energy to improve in those areas rather than wasting your time focusing on the negative.
The King of Israel answered, “Tell him: ‘One who puts on his armor should not boast like one who takes it off.’ ”
1 Kings 20:11