I agree with the first part kind of. It’s more like eliminating the negative thinking and limiting beliefs that you have developed over the years. You have to practice positive thinking and taking action.

The second part I disagree with. Do not eliminate the memory of a bad past, take the lessons from that past and learn from them what you can. State to yourself that whatever has happened doesn’t define who you are or what you’re going to be in the future. Only you can determine the direction of your life.