Things are where they are in your life because of what you've done, what you haven't done, and how you've done it. Your unwritten future is bound to the same cause & effect. What you're doing, what you're not doing, and how you're doing it lead somewhere.
Your fulfillment or lack of it is your responsibility. Same for your confidence, happiness, and performance. They are where they are because of your past and current discipline.
Don't sit around recognizing your disappointment, frustration, resentment, insecurity, anxiety, or aspects of yourself you've let slide and pretend you're helpless. You have agency. You have power. You have a life with purpose. Use it.