18 DON'T BLAME SOMEBODY ELSE; "SOMEBODY" AIN'T DOIN IT
Unless someone is holding a gun to your head, your life and your decisions belong to you. Take responsibility. Hell, even if you're held at gun point you still have the option of saying "Screw you!" and taking the consequences.
But lets say your ex-girlfriend did jerk you around, or your parents didn't love you, or your boss won't give you a break-- so what? Do you prefer to sit around and whine about it or are you going to get on with things-- and live?