At the end of the day, you are in control of your own happiness. Life is going to happen whether you overthink it, overstress it or not. Just experience life and be happy along the way. You can't control everything in your life, but you can control your happiness.
I am responsible. Although I may not be able to prevent the worst from happening, I am responsible for my attitude toward the inevitable misfortunes that darken life. Bad things do happen; how I respond to them defines my character and the quality of my life. I can choose to sit in perpetual sadness, immobilized by the gravity of my loss, or I can choose to rise from the pain and treasure the most precious gift I have ? life itself.