Who the fuck cares about next year? Look longer-term, like 10-40 years, if you want to be rich.
Imagine:
America's economic engine is like the 16-cylinder, quad-turbocharged 1000HP engine present in the famous Bugatti Veyron sports car. Right now, the car just rolled out of a LONG stop at a red light in a city. It's driving at 10 MPH and slowly accelerating to 25 MPH as it heads out in the countryside. Still another intersection or two out of the city, but looks like there will be green lights on the way out. Imagine a bus full of people driving on the lane next to the Bugatti. The people in this bus are arguing whether the car will reach 20 MPH or just get stuck at another red light. None of these folks are talking about the car's true potential, which WILL be realized in the countryside 10 minutes later, regardless of red lights or traffic.
The idiots in the bus represent average investors buying stocks in American businesses and arguing about what's going to happen in the next 3, 6, 12 months. America's leaving the gridlock and rolling at 10 MPH right now. It will reach a crazy 250 MPH speed again. What happens in between is irrelevant.
This is how you should think about investments. Any other way is a fool's errand.