Even though it's easier to believe we're the victims of our circumstances, it's empowering to take ownership of how the world around us impacts our well-being. Regardless of the situation you find yourself in, I believe that you always have a choice, and there are always things within your control that you can focus on.
First and foremost, do not believe that your Inner Worrier is the voice of truth. It's simply the voice of fear. Secondly, know that stress is an inevitable part of living life. Work with it, find your way to getting yourself in the driver's seat rather than allowing the worry and doubt to steer your vehicle.