Stock market uncertainty will always exist. Many investors struggle to separate their emotions from their investment strategy.
The market goes through high, low, and consolidation periods. Having a consistent investment approach that looks past short term market noise is a valuable asset.
Keeping a level head through the ups and downs of the market is a crucial piece of the investment puzzle. Failing to do so is a critical mistake that has nothing to do with intelligence and everything to do with managing emotions.
The following article and video do a good job further explaining this important topic.