I know some of what you are going through. I constantly analyze everything, every thought, every action. I dwell on things that happen during the day and try to figure out what I should have done different. Like nothing is ever OK enough. It's exhausting and nerve racking. I feel like I have two sides in me, always fighting. One is very negative and insecure, while the other side is rational and confident. My psychologist said I have to overcome the negative and irrational thoughts by finding out what, from my past, is causing them. Best wishes!