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.
Smiling is good for you -- both physically and mentally. In fact, there are a slew of scientific studies that prove the physical and psychological effects of smiling. And I'm not talking about fake smiles, but honest-to-goodness smiles that reach your eyes. They not only affect you, but also have an impact on others around you.
Exercise is one of the most potent stress-reducers on the planet -- and yet, in the irony of ironies, it's the one thing far too many of us don't make time for. There are lots of reasons why, but the fact is the idea of working out can create enough stress that you skip it -- and miss out on a boatload of mind and body benefits.