I decided to go back and finish the Comrades a year later. I knew it was worth the wait. Not finishing the Comrades looked like a failure at that time but I actually gained something.
A year later, the year 2015, I went back and completed the Up run. While approaching Drummond I saw the stone, it appeared to be smiling at me and waving its hands for my successful finish.
Today, I am comfortable talking about success and facing failures after going through such experiences. I've learned that both success and failure are short-lived.
It is important is to celebrate the success immediately without waiting. Should the results be not the best and/or the desired one, be patient, mentally stay stronger, take a step back, feel positive, and fix the foundation, if needed.
The experiences are worth experiencing, well, irrespective of their outcomes.