Sometimes, you keep trying because you believe in what you are doing. That said, I have wasted a lot of time and money just trying. You can make 6 figures or more when something 'clicks' as the result of your trying new ideas. Sometimes you will win --most of the time you will lose. Win big and lose small. If you don't put your money on the wood and try --you can never win.My brother constantly creates promotional videos, though I can't say that he directly earns a lot from this.