I liken writing to playing golf. I practiced both when I was a lad, growing up. I have not found a way to make a living doing either skill. I do believe that I am a much better writer than I am a golfer. But in my life I have made just as much money playing golf as I have made writing: A grand total of: ZERO DOLLARS.
The difference is that while I can improve both my golf game and my writing, I have a better chance of making a buck to two using my writing skills to earn a living than using my golfing skills.