Yes, your mind—that is, your thoughts— can change your brain. Odd as it may sound, as you create new thought patterns, you actually rewire your brain. The more you practice a new thinking habit, the more the same neurons will learn to work together and wire together. As neuroscientists say, neurons that fire together, wire together. In other words, “…directed, willed mental activity can clearly and systematically alter brain function.”
What you can do: Deliberately change your self-talk. For example, if you tend to wallow in frustration and anger when you make mistakes, practice telling yourself, “Mistakes are just part of life. I will make a conscious effort to learn from my mistakes.” Or write down the self-talk you’d like to adopt in a given situation, then recite it to yourself when needed.