It’s a classic metaphor. When you are pointing the finger at someone else, there are three fingers pointing back at you. Blame is destructive. If you are committed to living a happy and productive life, then you must give up blaming others for anything that happens. Are there instances where other people are at fault? Yes. Does that make a difference in your happiness and success? No. In order for you to experience happiness and success you must move in the direction being the creator of your experience.
Happiness and success occur when you are totally responsible for your life in every way. Meaning, no one and nothing out there in the world have dominion over you.
Do you have control over the world? Not always. But do you have control over your experience of the world? Yes. How you choose to view a situation determines your actions which influences the results. When you take the blame for everything that occurs in your life, when you declare yourself responsible for the experience you are having, you can turn lemons into lemonade.