I am currently reading a few books on finance( The Psychology of money) and a book on decision making( Thinking in bets) and a few other books on science. In all these books the common theme was uncertainty. Our lives are fundamentally uncertain and chaotic. When most of us evaluate our decisions, we tend to look at the outcomes and that seems reasonable, but most for us forget to rive room for uncertainty and luck, which actually plays a crucial role in our outcomes. Life is not like a game of chess it's like poker , where future is unpredictable. Its a place where rules are not defined clearly and are meant to be changed. There are chances that you might fail even after taking the best decision possible. We know that finance industry players get to learn this early as large amount of factors are define the markets. Hence in the world of uncertainty consistency helps our achieve our goals, this can be clearly visualized by this chart or any other market chart.

We can clearly see that there are tragic lows but the overall, is net positive. That is the reason investing consistently over a long period of time will fetch us good results, investing here can be anything to anything money, skills etc.
Therefore don't always fret about results, show up everyday and you'll have your day soon.