"If you make it a habit not to blame others, you will feel the growth of the ability to love in your soul, and you will see the growth of goodness in your life."
— Leo Tolstoy
Sometimes we are wronged and the only sensible thing to do is to complain about it and appropriately blame whoever is at fault. It simply feels better. But soon thereafter, we are often left with a bitter pill. Regret. I've blamed others for mistakes and even gotten mad about it. Thereafter, I wished I had simply kept my mouth shut and started to focus on a solution instead of focusing on what caused a problem to begin with.
Don't blame other folks for your own mistakes, or worse, point out their mistakes and make them feel even worse.