Secondly, as said in "Born in Worry and Died in Happiness", "Patience is what it can't do" means. Only by tempering in and out can you increase your abilities that you don't have.
Third, the discrepancy between historical books and classics should be understood with your heart, but the adversity you have experienced has really sharpened your mind and perseverance, and accumulated rich experience and contrast for the adversity you will encounter in the future.
Therefore, adversity is the highest institution of learning in life.