I would add to this that while your thinking governs your decisions, your experience predicts your thinking.
While it is impossible to change your previous experiences, you can work on changing your future ones.
You can change your experience by changing the people you are around.
And you know what else you can do to change your experience?
“You are where you are today—mentally, spiritually, emotionally, financially, and, in many ways, physically—because of decisions you have made. Your decisions have always been governed by your thinking. Therefore, you are where you are today mentally, physically, spiritually, emotionally, and financially because of the quality of your thoughts, the perspectives you have about life, and your beliefs about yourself and others. In other words, your thinking. Do you truly desire a significant change in your life? Change your thinking!”
-Andy Andrews, The Seven Decisions